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From cross-sectional survey to cohort study

 

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Jul 2009762927
Aug 20093657
Sep 20091872
Oct 20091286
Nov 2009920
Dec 20091214
Jan 2010456
Feb 2010423
Mar 2010521
Apr 2010620
May 2010661
Jun 2010200
Jul 2010264
Aug 2010642
Sep 2010782
Oct 201053412
Nov 20101130
Dec 2010211
Jan 2011411
Feb 2011412
Mar 2011120
Apr 2011581
May 20111602
Jun 20111300
Jul 2011500
Aug 2011901
Sep 20111322
Oct 2011933
Nov 20111310
Dec 20111900
Jan 20121512
Feb 2012500
Mar 2012700
Apr 2012200
May 20121611
Jun 2012730
Jul 2012400
Aug 2012800
Sep 20122101
Oct 2012800
Nov 2012030
Dec 2012013
Jan 2013001
Feb 2013010
Apr 2013002
May 2013012
Jun 2013310
Jul 2013500
Aug 2013500
Sep 20131011
Oct 2013810
Nov 2013402
Dec 2013411
Jan 2014411
Feb 2014600
Mar 20141554
Apr 2014801
May 2014900
Jun 2014800
Jul 2014500
Aug 20141000
Sep 2014100
Oct 2014410
Nov 2014300
Dec 2014600
Jan 2015900
Feb 2015300
Mar 20151201
Apr 2015700
May 2015300
Jun 2015600
Jul 2015300
Aug 2015100
Sep 2015900
Oct 2015400
Nov 2015100
Dec 2015600
Jan 2016500
Feb 2016525
Mar 2016556
Jul 2016200
Oct 2016700
Nov 2016621
Dec 20169100
Jan 2017880
Feb 2017922
Mar 2017910
Apr 2017820
May 2017420
Jun 20171200
Jul 2017710
Aug 2017710
Sep 20171600
Oct 20171500
Nov 20172631
Dec 20172300
Jan 20181600
Feb 20181800
Mar 20182120
Apr 20182750
May 20182310
Jun 20181921
Jul 20182220
Aug 20182650
Sep 2018710
Oct 20181600
Nov 20181420
Dec 20181300
Jan 2019810
Feb 20191200
Mar 2019810
Apr 2019500
May 20191510
Jun 2019600
Jul 20191020
Aug 20191730
Sep 20191001
Oct 20191510
Nov 20191310
Dec 2019200
Jan 2020400
Feb 2020910
Mar 2020310
Apr 2020310
May 2020310
Jun 2020810
Jul 20201310
Aug 2020711
Sep 20201600
Oct 20202831
Total1313268173