Article metrics

 

Online download statistics by month:

Online download statistics by month: January 1999 to April 2020

AbstractFullPdf
Jan 1999010
Feb 1999020
Mar 1999010
Apr 1999021
May 1999040
Jun 1999020
Feb 2000010
May 2000010
Jul 2000010
Aug 2000010
Sep 2000010
Oct 2000020
Dec 2000001
Feb 2001010
Mar 2001010
Aug 2001010
Dec 2001010
Jan 2002020
Feb 2002010
May 2002020
Jun 2002020
Aug 2002010
Oct 2002010
Mar 2003030
May 2003020
Jul 2003010
Aug 2003040
Sep 2003060
Oct 2003010
Nov 2003040
Dec 2003070
Jan 2004050
Feb 2004030
Mar 2004040
Apr 2004040
May 2004041
Jun 2004090
Jul 20040101
Aug 20040140
Sep 2004050
Oct 2004350
Nov 2004340
Dec 2004330
Jan 2005550
Feb 2005340
Mar 2005560
Apr 2005030
Jun 2005110
Jul 2005130
Aug 2005153
Sep 2005010
Oct 2005110
Nov 2005200
Jan 2006230
Feb 2006120
Mar 2006010
Apr 2006010
May 2006023
Jun 2006100
Jul 2006010
Sep 2006010
Oct 2006050
Nov 2006033
Dec 2006010
Jan 2007010
Feb 2007040
May 2007310
Aug 2007010
Sep 2007200
Oct 2007110
Jan 2008120
May 2008100
Aug 2008110
Sep 2008100
Oct 2008010
Nov 2008100
Dec 2008010
Jan 2009200
Feb 20095120
Mar 2009080
Apr 2009070
May 2009090
Jun 2009060
Jul 20090100
Aug 2009290
Sep 2009470
Oct 2009490
Nov 2009280
Dec 2009120
Jul 2010010
Aug 201070150
Sep 2010186360
Oct 201078170
Nov 20102600
Dec 2010100
Feb 2011110
Mar 20111680
Apr 2011530
May 20113150
Jun 2011620
Jul 2011700
Aug 2011100
Sep 2011630
Oct 20112890
Nov 20111020
Dec 20111020
Jan 201229150
Feb 20121710
Mar 2012710
Apr 2012620
Jun 2012320
Jul 20121330
Aug 20123370
Sep 20121960
Oct 2012320
Nov 2012580
Dec 2012200
Jan 2013340
Feb 20132310
Mar 201311130
Apr 201371300
May 20132110
Jun 20136230
Jul 20132830
Aug 201375550
Sep 201355340
Oct 201311250
Nov 201346140
Dec 20131260
Jan 2014200
Feb 2014010
Mar 2014530
Apr 2014210
May 2014210
Jul 20141030
Aug 2014610
Sep 20141020
Oct 2014010
Nov 2014010
Dec 2014010
Jan 2015120
Feb 2015930
Mar 2015490
Apr 2015510
May 2015240
Jun 2015200
Jul 2015100
Aug 20151200
Sep 201511710
Nov 201510010
Dec 20156710
Jan 20161720
Feb 2016320
Mar 20164200
Apr 2016120
May 2016100
Jun 2016310
Jul 2016010
Aug 2016010
Oct 2016010
Nov 2016242
Jan 2017300
Feb 2017100
Mar 2017120
Apr 2017020
May 2017030
Jun 2017330
Jul 2017210
Aug 2017220
Sep 201711110
Oct 2017440
Nov 2017330
Jan 201813110
Feb 2018110
Mar 201810100
Apr 2018880
May 2018880
Jun 2018750
Jul 2018530
Aug 2018330
Sep 2018220
Oct 2018440
Nov 2018730
Dec 201812120
Jan 20191180
Feb 20191380
Mar 201926240
Apr 2019650
May 2019440
Jun 2019330
Jul 2019330
Aug 2019400
Oct 2019220
Nov 2019220
Dec 2019550
Jan 2020220
Feb 2020220
Apr 2020220
Total173786115