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Purpose and procedure
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Online download statistics by month:

Online download statistics by month: March 2008 to January 2021

AbstractFullPdf
Mar 2008195816
Apr 20085419560
May 20084017963
Jun 20084117983
Jul 20085248
Aug 20085393
Sep 2008124912
Oct 20087229
Nov 200812365
Dec 2008494
Jan 20091122
Feb 20092114
Mar 200910164
Apr 2009470
May 2009051
Jun 2009422
Jul 2009570
Aug 2009136
Sep 2009041
Oct 20098111
Nov 20091100
Dec 2009201
Jan 2010021
Feb 2010141
Mar 2010282
Apr 2010275
May 2010242
Jun 2010223
Jul 20100327
Aug 2010100
Sep 2010120
Oct 2010253
Nov 2010123
Dec 2010101
Jan 2011032
Feb 2011011
Mar 2011242
Apr 2011110
May 2011113
Jun 2011023
Jul 2011153
Aug 2011122
Sep 20117154
Oct 2011416
Nov 20111351
Dec 20111156
Jan 20121696
Feb 20121396
Mar 2012563
Apr 2012713
May 2012213
Jun 2012822
Jul 2012224
Aug 2012113
Sep 20122112
Oct 2012437
Nov 2012064
Dec 2012074
Jan 20130105
Feb 2013012
Mar 2013067
Apr 2013073
May 20130134
Jun 2013310
Aug 2013002
Sep 2013100
Dec 2013540
Jan 2014112
Mar 20141030
Apr 2014210
May 2014113
Jun 2014130
Jul 2014440
Aug 2014141
Sep 2014490
Oct 20141460
Nov 2014580
Dec 2014480
Jan 2015360
Feb 2015443
Mar 20151752
Apr 2015821
May 2015580
Jun 2015201
Jul 2015660
Aug 2015120
Sep 2015201
Oct 2015110
Nov 2015611
Dec 2015110
Jan 2016782
Feb 2016230
Mar 2016003
Apr 2016012
May 2016751
Jun 2016530
Jul 2016330
Aug 2016330
Sep 2016430
Oct 20161252
Nov 2016270
Dec 2016540
Jan 2017640
Feb 2017031
Mar 20170100
Apr 2017080
May 20170100
Jun 2017390
Jul 2017991
Aug 201711110
Sep 201714140
Oct 201721212
Nov 201714140
Dec 201730300
Jan 201831310
Feb 201834281
Mar 201818180
Apr 201818180
May 201814140
Jun 201812120
Jul 2018331
Aug 2018110
Sep 2018330
Oct 2018330
Nov 201815150
Dec 201821210
Jan 201919191
Feb 201912121
Mar 2019223
Apr 2019111
May 2019222
Jun 2019662
Jul 2019112
Aug 2019002
Sep 2019002
Oct 2019113
Nov 2019001
Dec 2019642
Jan 2020001
Feb 2020222
Mar 2020002
Apr 2020111
Jun 2020322
Jul 2020551
Aug 2020002
Sep 2020990
Oct 20201094
Nov 2020440
Dec 2020551
Jan 2021871
Total9121583506