Rotterdam Open Data

Totaal aantal datasets

Datum	Totaal aantal datasets
Jun 04, 2012	9
Jun 11, 2012	13
Jun 18, 2012	14
Jun 25, 2012	15
Jul 02, 2012	16
Jul 09, 2012	17
Jul 16, 2012	18
Jul 23, 2012	19
Jul 30, 2012	99
Aug 06, 2012	100
Aug 13, 2012	101
Aug 20, 2012	102
Aug 27, 2012	103
Sep 03, 2012	104
Sep 10, 2012	105
Sep 17, 2012	106
Sep 24, 2012	107
Oct 01, 2012	108
Oct 08, 2012	117
Oct 15, 2012	117
Oct 22, 2012	117
Oct 29, 2012	117
Nov 05, 2012	117
Nov 12, 2012	117
Nov 19, 2012	117
Nov 26, 2012	117
Dec 03, 2012	117
Dec 10, 2012	117
Dec 17, 2012	117
Dec 24, 2012	117
Dec 31, 2012	117
Jan 07, 2013	124
Jan 14, 2013	124
Jan 21, 2013	124
Jan 28, 2013	124
Feb 04, 2013	124
Feb 11, 2013	124
Feb 18, 2013	124
Feb 25, 2013	124
Mar 04, 2013	124
Mar 11, 2013	124
Mar 18, 2013	124
Mar 25, 2013	124
Apr 01, 2013	124
Apr 08, 2013	124
Apr 15, 2013	124
Apr 22, 2013	124
Apr 29, 2013	124
May 06, 2013	124
May 13, 2013	124
May 20, 2013	124
May 27, 2013	124
Jun 03, 2013	124
Jun 10, 2013	124
Jun 17, 2013	124
Jun 24, 2013	124
Jul 01, 2013	124
Jul 08, 2013	124
Jul 15, 2013	124
Jul 22, 2013	124
Jul 29, 2013	124
Aug 05, 2013	124
Aug 12, 2013	124
Aug 19, 2013	124
Aug 26, 2013	124
Sep 02, 2013	124
Sep 09, 2013	124
Sep 16, 2013	124
Sep 23, 2013	124
Sep 30, 2013	124
Oct 07, 2013	124
Oct 14, 2013	124
Oct 21, 2013	124
Oct 28, 2013	124
Nov 04, 2013	124
Nov 11, 2013	124
Nov 18, 2013	124
Nov 25, 2013	124
Dec 02, 2013	124
Dec 09, 2013	124
Dec 16, 2013	124
Dec 23, 2013	124
Dec 30, 2013	124
Jan 06, 2014	124
Jan 13, 2014	124
Jan 20, 2014	124
Jan 27, 2014	124
Feb 03, 2014	124
Feb 10, 2014	124
Feb 17, 2014	124
Feb 24, 2014	124
Mar 03, 2014	124
Mar 10, 2014	124
Mar 17, 2014	124
Mar 24, 2014	124
Mar 31, 2014	124
Apr 07, 2014	124
Apr 14, 2014	124
Apr 21, 2014	124
Apr 28, 2014	124
May 05, 2014	124
May 12, 2014	124
May 19, 2014	124
May 26, 2014	124
Jun 02, 2014	124
Jun 09, 2014	124
Jun 16, 2014	124
Jun 23, 2014	124
Jun 30, 2014	124
Jul 07, 2014	124
Jul 14, 2014	124
Jul 21, 2014	124
Jul 28, 2014	124
Aug 04, 2014	124
Aug 11, 2014	124
Aug 18, 2014	124
Aug 25, 2014	124
Sep 01, 2014	124
Sep 08, 2014	124
Sep 15, 2014	124
Sep 22, 2014	124
Sep 29, 2014	124
Oct 06, 2014	124
Oct 13, 2014	125
Oct 20, 2014	126
Oct 27, 2014	127
Nov 03, 2014	128
Nov 10, 2014	129
Nov 17, 2014	130
Nov 24, 2014	131
Dec 01, 2014	132
Dec 08, 2014	133
Dec 15, 2014	134
Dec 22, 2014	135
Dec 29, 2014	136
Jan 05, 2015	137
Jan 12, 2015	138
Jan 19, 2015	138
Jan 26, 2015	138
Feb 02, 2015	138
Feb 09, 2015	138
Feb 16, 2015	138
Feb 23, 2015	138
Mar 02, 2015	138
Mar 09, 2015	138
Mar 16, 2015	138
Mar 23, 2015	138
Mar 30, 2015	138
Apr 06, 2015	138
Apr 13, 2015	138
Apr 20, 2015	138
Apr 27, 2015	138
May 04, 2015	138
May 11, 2015	138
May 18, 2015	138
May 25, 2015	138
Jun 01, 2015	138
Jun 08, 2015	138
Jun 15, 2015	138
Jun 22, 2015	138
Jun 29, 2015	138
Jul 06, 2015	138
Jul 13, 2015	138
Jul 20, 2015	138
Jul 27, 2015	138
Aug 03, 2015	138
Aug 10, 2015	138
Aug 17, 2015	138
Aug 24, 2015	138
Aug 31, 2015	138
Sep 07, 2015	138
Sep 14, 2015	138
Sep 21, 2015	138
Sep 28, 2015	138
Oct 05, 2015	138
Oct 12, 2015	138
Oct 19, 2015	138
Oct 26, 2015	138
Nov 02, 2015	138
Nov 09, 2015	138
Nov 16, 2015	138
Nov 23, 2015	138
Nov 30, 2015	138
Dec 07, 2015	138
Dec 14, 2015	138
Dec 21, 2015	138
Dec 28, 2015	138
Jan 04, 2016	138
Jan 11, 2016	138
Jan 18, 2016	138
Jan 25, 2016	138
Feb 01, 2016	138
Feb 08, 2016	138
Feb 15, 2016	138
Feb 22, 2016	138
Feb 29, 2016	138
Mar 07, 2016	138
Mar 14, 2016	138
Mar 21, 2016	138
Mar 28, 2016	138
Apr 04, 2016	138
Apr 11, 2016	138
Apr 18, 2016	138
Apr 25, 2016	138
May 02, 2016	138
May 09, 2016	138
May 16, 2016	138
May 23, 2016	138
May 30, 2016	138
Jun 06, 2016	138
Jun 13, 2016	138
Jun 20, 2016	138
Jun 27, 2016	138
Jul 04, 2016	138
Jul 11, 2016	138
Jul 18, 2016	138
Jul 25, 2016	138
Aug 01, 2016	138
Aug 08, 2016	138
Aug 15, 2016	138
Aug 22, 2016	138
Aug 29, 2016	138
Sep 05, 2016	138
Sep 12, 2016	138
Sep 19, 2016	138
Sep 26, 2016	138
Oct 03, 2016	138
Oct 10, 2016	138
Oct 17, 2016	138
Oct 24, 2016	138
Oct 31, 2016	138
Nov 07, 2016	138
Nov 14, 2016	138
Nov 21, 2016	138
Nov 28, 2016	138
Dec 05, 2016	138
Dec 12, 2016	138
Dec 19, 2016	138
Dec 26, 2016	138
Jan 02, 2017	138
Jan 09, 2017	138
Jan 16, 2017	138
Jan 23, 2017	138
Jan 30, 2017	138
Feb 06, 2017	138
Feb 13, 2017	138
Feb 20, 2017	138
Feb 27, 2017	138
Mar 06, 2017	138
Mar 13, 2017	138
Mar 20, 2017	138
Mar 27, 2017	138
Apr 03, 2017	138
Apr 10, 2017	138
Apr 17, 2017	138
Apr 24, 2017	138
May 01, 2017	138
May 08, 2017	138
May 15, 2017	138
May 22, 2017	138
May 29, 2017	138
Jun 05, 2017	138
Jun 12, 2017	138
Jun 19, 2017	138
Jun 26, 2017	138
Jul 03, 2017	138
Jul 10, 2017	138
Jul 17, 2017	138
Jul 24, 2017	138
Jul 31, 2017	138
Aug 07, 2017	138
Aug 14, 2017	138
Aug 21, 2017	138
Aug 28, 2017	138
Sep 04, 2017	138
Sep 11, 2017	138
Sep 18, 2017	138
Sep 25, 2017	138
Oct 02, 2017	138
Oct 09, 2017	138
Oct 16, 2017	138
Oct 23, 2017	138
Oct 30, 2017	138
Nov 06, 2017	138
Nov 13, 2017	138
Nov 20, 2017	138
Nov 27, 2017	138
Dec 04, 2017	138
Dec 11, 2017	138
Dec 18, 2017	138
Dec 25, 2017	138
Jan 01, 2018	138
Jan 08, 2018	138
Jan 15, 2018	138
Jan 22, 2018	138
Jan 29, 2018	138
Feb 05, 2018	138
Feb 12, 2018	138
Feb 19, 2018	138
Feb 26, 2018	138
Mar 05, 2018	138
Mar 12, 2018	138
Mar 19, 2018	138
Mar 26, 2018	138
Apr 02, 2018	138
Apr 09, 2018	138
Apr 16, 2018	138
Apr 23, 2018	138
Apr 30, 2018	138
May 07, 2018	138
May 14, 2018	138
May 21, 2018	138
May 28, 2018	138
Jun 04, 2018	138
Jun 11, 2018	138
Jun 18, 2018	138
Jun 25, 2018	138
Jul 02, 2018	138
Jul 09, 2018	138
Jul 16, 2018	138
Jul 23, 2018	138
Jul 30, 2018	138
Aug 06, 2018	138
Aug 13, 2018	138
Aug 20, 2018	138
Aug 27, 2018	138
Sep 03, 2018	138
Sep 10, 2018	138
Sep 17, 2018	138
Sep 24, 2018	138
Oct 01, 2018	138
Oct 08, 2018	138
Oct 15, 2018	138
Oct 22, 2018	138
Oct 29, 2018	138
Nov 05, 2018	138
Nov 12, 2018	138
Nov 19, 2018	138
Nov 26, 2018	138
Dec 03, 2018	138
Dec 10, 2018	138
Dec 17, 2018	138
Dec 24, 2018	138
Dec 31, 2018	138
Jan 07, 2019	138
Jan 14, 2019	138
Jan 21, 2019	138
Jan 28, 2019	138
Feb 04, 2019	138
Feb 11, 2019	138
Feb 18, 2019	138
Feb 25, 2019	138
Mar 04, 2019	138
Mar 11, 2019	138
Mar 18, 2019	138
Mar 25, 2019	138
Apr 01, 2019	138
Apr 08, 2019	138
Apr 15, 2019	138
Apr 22, 2019	138
Apr 29, 2019	138
May 06, 2019	138
May 13, 2019	138
May 20, 2019	138
May 27, 2019	138
Jun 03, 2019	138
Jun 10, 2019	138
Jun 17, 2019	138
Jun 24, 2019	138
Jul 01, 2019	138
Jul 08, 2019	138
Jul 15, 2019	138

Datasets herzieningen per Week

Datum	Alle dataset herzieningen	Nieuwe datasets
Jun 04, 2012	16	9
Jun 11, 2012	5	4
Jun 18, 2012	1	1
Jun 25, 2012	1	1
Jul 02, 2012	1	1
Jul 09, 2012	1	1
Jul 16, 2012	1	1
Jul 23, 2012	3	1
Jul 30, 2012	88	80
Aug 06, 2012	1	1
Aug 13, 2012	1	1
Aug 20, 2012	1	1
Aug 27, 2012	1	1
Sep 03, 2012	1	1
Sep 10, 2012	1	1
Sep 17, 2012	1	1
Sep 24, 2012	1	1
Oct 01, 2012	1	1
Oct 08, 2012	66	11
Oct 15, 2012	4	1
Oct 22, 2012	3	1
Oct 29, 2012	2	1
Nov 05, 2012	2	1
Nov 12, 2012	7	1
Nov 19, 2012	1	1
Nov 26, 2012	1	1
Dec 03, 2012	1	1
Dec 10, 2012	1	1
Dec 17, 2012	1	1
Dec 24, 2012	1	1
Dec 31, 2012	1	1
Jan 07, 2013	11	8
Jan 14, 2013	1	1
Jan 21, 2013	1	1
Jan 28, 2013	1	1
Feb 04, 2013	1	1
Feb 11, 2013	1	1
Feb 18, 2013	1	1
Feb 25, 2013	1	1
Mar 04, 2013	1	1
Mar 11, 2013	1	1
Mar 18, 2013	1	1
Mar 25, 2013	1	1
Apr 01, 2013	1	1
Apr 08, 2013	1	1
Apr 15, 2013	18	1
Apr 22, 2013	1	1
Apr 29, 2013	5	1
May 06, 2013	1	1
May 13, 2013	1	1
May 20, 2013	1	1
May 27, 2013	2	1
Jun 03, 2013	3	1
Jun 10, 2013	1	1
Jun 17, 2013	8	1
Jun 24, 2013	1	1
Jul 01, 2013	1	1
Jul 08, 2013	1	1
Jul 15, 2013	1	1
Jul 22, 2013	4	1
Jul 29, 2013	1	1
Aug 05, 2013	1	1
Aug 12, 2013	1	1
Aug 19, 2013	1	1
Aug 26, 2013	1	1
Sep 02, 2013	1	1
Sep 09, 2013	10	1
Sep 16, 2013	10	1
Sep 23, 2013	1	1
Sep 30, 2013	1	1
Oct 07, 2013	1	1
Oct 14, 2013	1	1
Oct 21, 2013	1	1
Oct 28, 2013	1	1
Nov 04, 2013	1	1
Nov 11, 2013	1	1
Nov 18, 2013	1	1
Nov 25, 2013	1	1
Dec 02, 2013	1	1
Dec 09, 2013	1	1
Dec 16, 2013	1	1
Dec 23, 2013	1	1
Dec 30, 2013	1	1
Jan 06, 2014	1	1
Jan 13, 2014	1	1
Jan 20, 2014	1	1
Jan 27, 2014	205	1
Feb 03, 2014	29	1
Feb 10, 2014	1	1
Feb 17, 2014	17	1
Feb 24, 2014	12	1
Mar 03, 2014	2	1
Mar 10, 2014	1	1
Mar 17, 2014	4	1
Mar 24, 2014	5	1
Mar 31, 2014	7	1
Apr 07, 2014	5	1
Apr 14, 2014	1	1
Apr 21, 2014	1	1
Apr 28, 2014	1	1
May 05, 2014	1	1
May 12, 2014	1	1
May 19, 2014	1	1
May 26, 2014	1	1
Jun 02, 2014	1	1
Jun 09, 2014	1	1
Jun 16, 2014	1	1
Jun 23, 2014	1	1
Jun 30, 2014	1	1
Jul 07, 2014	1	1
Jul 14, 2014	1	1
Jul 21, 2014	1	1
Jul 28, 2014	1	1
Aug 04, 2014	1	1
Aug 11, 2014	1	1
Aug 18, 2014	1	1
Aug 25, 2014	1	1
Sep 01, 2014	1	1
Sep 08, 2014	1	1
Sep 15, 2014	1	1
Sep 22, 2014	1	1
Sep 29, 2014	1	1
Oct 06, 2014	1	1
Oct 13, 2014	1	1
Oct 20, 2014	1	1
Oct 27, 2014	1	1
Nov 03, 2014	1	1
Nov 10, 2014	1	1
Nov 17, 2014	1	1
Nov 24, 2014	1	1
Dec 01, 2014	1	1
Dec 08, 2014	1	1
Dec 15, 2014	1	1
Dec 22, 2014	1	1
Dec 29, 2014	1	1
Jan 05, 2015	1	1
Jan 12, 2015	1	1
Jan 19, 2015	1	0
Jan 26, 2015	1	0
Feb 02, 2015	1	0
Feb 09, 2015	1	0
Feb 16, 2015	1	0
Feb 23, 2015	1	0
Mar 02, 2015	1	0
Mar 09, 2015	1	0
Mar 16, 2015	1	0
Mar 23, 2015	1	0
Mar 30, 2015	1	0
Apr 06, 2015	1	0
Apr 13, 2015	1	0
Apr 20, 2015	1	0
Apr 27, 2015	1	0
May 04, 2015	1	0
May 11, 2015	1	0
May 18, 2015	1	0
May 25, 2015	1	0
Jun 01, 2015	1	0
Jun 08, 2015	1	0
Jun 15, 2015	1	0
Jun 22, 2015	1	0
Jun 29, 2015	1	0
Jul 06, 2015	1	0
Jul 13, 2015	1	0
Jul 20, 2015	14	0
Jul 27, 2015	1	0
Aug 03, 2015	21	0
Aug 10, 2015	1	0
Aug 17, 2015	1	0
Aug 24, 2015	1	0
Aug 31, 2015	1	0
Sep 07, 2015	1	0
Sep 14, 2015	1	0
Sep 21, 2015	1	0
Sep 28, 2015	3	0
Oct 05, 2015	1	0
Oct 12, 2015	1	0
Oct 19, 2015	1	0
Oct 26, 2015	138	0
Nov 02, 2015	21	0
Nov 09, 2015	1	0
Nov 16, 2015	1	0
Nov 23, 2015	1	0
Nov 30, 2015	1	0
Dec 07, 2015	1	0
Dec 14, 2015	1	0
Dec 21, 2015	1	0
Dec 28, 2015	1	0
Jan 04, 2016	1	0
Jan 11, 2016	1	0
Jan 18, 2016	1	0
Jan 25, 2016	1	0
Feb 01, 2016	1	0
Feb 08, 2016	1	0
Feb 15, 2016	1	0
Feb 22, 2016	1	0
Feb 29, 2016	1	0
Mar 07, 2016	1	0
Mar 14, 2016	1	0
Mar 21, 2016	1	0
Mar 28, 2016	1	0
Apr 04, 2016	1	0
Apr 11, 2016	1	0
Apr 18, 2016	1	0
Apr 25, 2016	1	0
May 02, 2016	1	0
May 09, 2016	1	0
May 16, 2016	1	0
May 23, 2016	1	0
May 30, 2016	1	0
Jun 06, 2016	1	0
Jun 13, 2016	1	0
Jun 20, 2016	1	0
Jun 27, 2016	1	0
Jul 04, 2016	1	0
Jul 11, 2016	1	0
Jul 18, 2016	1	0
Jul 25, 2016	1	0
Aug 01, 2016	1	0
Aug 08, 2016	1	0
Aug 15, 2016	1	0
Aug 22, 2016	1	0
Aug 29, 2016	1	0
Sep 05, 2016	1	0
Sep 12, 2016	1	0
Sep 19, 2016	1	0
Sep 26, 2016	1	0
Oct 03, 2016	1	0
Oct 10, 2016	1	0
Oct 17, 2016	1	0
Oct 24, 2016	1	0
Oct 31, 2016	1	0
Nov 07, 2016	1	0
Nov 14, 2016	1	0
Nov 21, 2016	1	0
Nov 28, 2016	1	0
Dec 05, 2016	1	0
Dec 12, 2016	1	0
Dec 19, 2016	1	0
Dec 26, 2016	1	0
Jan 02, 2017	1	0
Jan 09, 2017	0	0
Jan 16, 2017	0	0
Jan 23, 2017	0	0
Jan 30, 2017	0	0
Feb 06, 2017	0	0
Feb 13, 2017	0	0
Feb 20, 2017	0	0
Feb 27, 2017	0	0
Mar 06, 2017	0	0
Mar 13, 2017	0	0
Mar 20, 2017	0	0
Mar 27, 2017	0	0
Apr 03, 2017	0	0
Apr 10, 2017	0	0
Apr 17, 2017	0	0
Apr 24, 2017	0	0
May 01, 2017	0	0
May 08, 2017	0	0
May 15, 2017	0	0
May 22, 2017	0	0
May 29, 2017	0	0
Jun 05, 2017	0	0
Jun 12, 2017	0	0
Jun 19, 2017	0	0
Jun 26, 2017	0	0
Jul 03, 2017	0	0
Jul 10, 2017	0	0
Jul 17, 2017	0	0
Jul 24, 2017	0	0
Jul 31, 2017	0	0
Aug 07, 2017	0	0
Aug 14, 2017	0	0
Aug 21, 2017	0	0
Aug 28, 2017	0	0
Sep 04, 2017	0	0
Sep 11, 2017	0	0
Sep 18, 2017	0	0
Sep 25, 2017	0	0
Oct 02, 2017	0	0
Oct 09, 2017	0	0
Oct 16, 2017	0	0
Oct 23, 2017	0	0
Oct 30, 2017	0	0
Nov 06, 2017	0	0
Nov 13, 2017	0	0
Nov 20, 2017	0	0
Nov 27, 2017	0	0
Dec 04, 2017	0	0
Dec 11, 2017	0	0
Dec 18, 2017	0	0
Dec 25, 2017	0	0
Jan 01, 2018	0	0
Jan 08, 2018	0	0
Jan 15, 2018	0	0
Jan 22, 2018	0	0
Jan 29, 2018	0	0
Feb 05, 2018	0	0
Feb 12, 2018	0	0
Feb 19, 2018	0	0
Feb 26, 2018	0	0
Mar 05, 2018	0	0
Mar 12, 2018	0	0
Mar 19, 2018	0	0
Mar 26, 2018	0	0
Apr 02, 2018	0	0
Apr 09, 2018	0	0
Apr 16, 2018	0	0
Apr 23, 2018	0	0
Apr 30, 2018	0	0
May 07, 2018	0	0
May 14, 2018	0	0
May 21, 2018	0	0
May 28, 2018	0	0
Jun 04, 2018	0	0
Jun 11, 2018	0	0
Jun 18, 2018	0	0
Jun 25, 2018	0	0
Jul 02, 2018	0	0
Jul 09, 2018	0	0
Jul 16, 2018	0	0
Jul 23, 2018	0	0
Jul 30, 2018	0	0
Aug 06, 2018	0	0
Aug 13, 2018	0	0
Aug 20, 2018	0	0
Aug 27, 2018	0	0
Sep 03, 2018	0	0
Sep 10, 2018	0	0
Sep 17, 2018	0	0
Sep 24, 2018	0	0
Oct 01, 2018	0	0
Oct 08, 2018	0	0
Oct 15, 2018	0	0
Oct 22, 2018	0	0
Oct 29, 2018	0	0
Nov 05, 2018	0	0
Nov 12, 2018	0	0
Nov 19, 2018	0	0
Nov 26, 2018	0	0
Dec 03, 2018	0	0
Dec 10, 2018	0	0
Dec 17, 2018	0	0
Dec 24, 2018	0	0
Dec 31, 2018	0	0
Jan 07, 2019	0	0
Jan 14, 2019	0	0
Jan 21, 2019	0	0
Jan 28, 2019	0	0
Feb 04, 2019	0	0
Feb 11, 2019	0	0
Feb 18, 2019	0	0
Feb 25, 2019	0	0
Mar 04, 2019	0	0
Mar 11, 2019	0	0
Mar 18, 2019	0	0
Mar 25, 2019	0	0
Apr 01, 2019	0	0
Apr 08, 2019	0	0
Apr 15, 2019	0	0
Apr 22, 2019	0	0
Apr 29, 2019	0	0
May 06, 2019	0	0
May 13, 2019	0	0
May 20, 2019	0	0
May 27, 2019	0	0
Jun 03, 2019	0	0
Jun 10, 2019	0	0
Jun 17, 2019	0	0
Jun 24, 2019	0	0
Jul 01, 2019	0	0
Jul 08, 2019	0	0
Jul 15, 2019	0	0

Hoogst gewaardeerde datasets

Geen score

Meest bewerkte dataset

Dataset	Aantal veranderingen
Webservice Beheer Buitenruimte	26
Webservice Strooiroutes Rotterdam	24
Stadsbeheer Openbare Werken	17
Bruggendata	14
Tabellen Mobiliteitsonderzoek Nederland	12
Dataset of Junior04	12
NDW	12
Bodemonderzoeken Rijnhaven	11
mydatasteven.foo@sense-os.nl	10
Kadastrale Data 1832	8

Grootste groepen

Groep	Aantal datasets
Gemeente Rotterdam	39
Veiligheid en criminaliteit	19
Geografie	17
Nieuw	13
Mobiliteit	11
Rijnhaven	10
DCMR Milieudienst Rijnmond	7
Commonsense-data	6
Sense OS	6
Woningbouw	5

Top labels

Tag Naam	Aantal Datasets
geschiedenis	3
archief	2
mobiliteit	2
rotterdam	2
verkeer en vervoer	2
luchtkwaliteit	2
bruggen	2
geodata	2
3d	2
lidar	2

Gebruikers met het hoogste aantal datasets

Gebruiker	Aantal Datasets
Jeffrey Cafferata	40
Rotterdam Community Solutions	23
Anton Ruiter	10
Michiel Boelhouwer	5
melvindavelaar	5
DCMR Milieudienst Rijnmond, bureau KENV	4
Peter Conradie	3
A.M.D. van Bokhoven	3
Peter Dorsman	1
Bas van Meurs	1