Article metrics

Correction
Free

 

Online download statistics by month:

Online download statistics by month: May 2001 to April 2021

AbstractFullPdf
May 2001010
Aug 2001010
Oct 2001050
Dec 2001020
May 2002020
Jun 2002030
Jul 2002010
Aug 2002010
Sep 2002034
Oct 2002010
Feb 2003010
Mar 2003020
Apr 2003020
May 2003010
Jul 2003020
Aug 2003010
Sep 2003040
Oct 2003050
Nov 20030100
Dec 2003050
Jan 2004040
Feb 2004010
Mar 20040110
Apr 2004031
May 2004051
Jun 2004040
Jul 2004040
Aug 2004060
Sep 2004060
Oct 2004220
Nov 2004450
Dec 2004430
Jan 2005450
Feb 2005230
Mar 2005340
Apr 2005010
May 2005010
Jun 2005120
Jul 2005110
Aug 2005010
Nov 2005220
Jul 2006003
Aug 2006120
Nov 2006015
Jan 2007010
Jul 2007100
Oct 2007100
Mar 2009010
May 2009200
Jun 2009300
Sep 2009100
Nov 2009110
Dec 2009100
Jan 2010050
Feb 2010030
Mar 2010200
May 2010070
Jun 2010110
Oct 20105110
Nov 2010020
Dec 2010020
Jan 2011110
Mar 2011120
Apr 2011220
May 2011610
Jun 2011410
Jul 2011100
Aug 2011400
Sep 2011210
Oct 2011560
Nov 201119100
Dec 20111980
Jan 20121270
Feb 20121450
Mar 2012810
Apr 2012530
May 20121160
Jun 20121670
Jul 2012830
Aug 2012320
Sep 20121000
Oct 20121880
Nov 2012840
Dec 2012520
Jan 201322110
Feb 20131350
Mar 20132280
Apr 201336190
May 201338120
Jun 2013110
Jul 2013400
Aug 2013200
Sep 2013110
Oct 2013200
Jan 2014100
Mar 2014930
Apr 20141130
May 2014310
Jun 2014100
Jul 2014200
Aug 20145020
Sep 2014100
Oct 2014310
Nov 2014520
Dec 20141010
Jan 2015310
Feb 2015330
Mar 2015200
Apr 2015010
May 2015980
Jun 20151400
Jul 20151230
Aug 20151310
Sep 201515400
Nov 20158210
Dec 20156610
Jan 2016410
Feb 20161310
Mar 20164500
Apr 20161600
May 2016100
Jun 2016230
Oct 2016110
Nov 2016100
Dec 2016100
Jan 2017200
Feb 2017100
Mar 2017010
Apr 2017030
May 2017040
Jun 2017120
Jul 2017330
Aug 2017550
Sep 2017770
Oct 2017330
Nov 2017880
Dec 2017440
Jan 2018770
Feb 2018770
Mar 2018550
Apr 2018550
May 2018550
Jun 2018440
Jul 2018440
Aug 2018660
Sep 2018220
Oct 2018420
Nov 2018330
Dec 2018780
Jan 2019550
Feb 20191270
Mar 2019330
Apr 2019330
May 2019110
Jun 2019220
Jul 2019220
Aug 2019750
Oct 2019670
Nov 2019110
Dec 2019330
Jan 202015140
Feb 2020660
Mar 2020110
May 2020660
Jun 2020660
Jul 2020880
Aug 2020220
Sep 202013130
Oct 202024240
Nov 202015150
Dec 2020990
Jan 202118160
Feb 2021540
Mar 2021330
Apr 2021220
Total117460514