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Volume 77, Issue 5
Why is it?
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Why is it?
Online download statistics by month:
Online download statistics by month: October 2001 to March 2024
Abstract
Full
Pdf
Oct 2001
0
16
1
Nov 2001
0
3
0
Dec 2001
0
4
0
Jan 2002
0
9
2
Feb 2002
0
3
0
Mar 2002
0
5
0
Apr 2002
0
5
1
May 2002
0
4
1
Jun 2002
0
7
0
Jul 2002
0
1
0
Aug 2002
0
5
1
Sep 2002
0
1
0
Oct 2002
0
4
0
Nov 2002
0
4
3
Dec 2002
0
2
0
Jan 2003
0
3
0
Mar 2003
0
1
0
Apr 2003
0
2
0
May 2003
0
5
0
Jun 2003
0
1
0
Jul 2003
0
5
0
Aug 2003
0
10
0
Sep 2003
0
7
1
Oct 2003
0
6
0
Nov 2003
0
7
0
Dec 2003
0
13
1
Jan 2004
0
8
0
Feb 2004
0
7
0
Mar 2004
0
8
1
Apr 2004
0
8
0
May 2004
0
11
0
Jun 2004
0
38
0
Jul 2004
0
44
0
Aug 2004
0
55
1
Sep 2004
0
19
0
Oct 2004
10
15
0
Nov 2004
4
5
0
Dec 2004
4
8
0
Jan 2005
11
12
0
Feb 2005
6
2
1
Mar 2005
10
15
1
Apr 2005
2
3
1
May 2005
2
2
0
Jun 2005
1
2
0
Jul 2005
1
1
0
Aug 2005
0
1
2
Sep 2005
1
1
0
Oct 2005
3
10
3
Nov 2005
4
4
0
Dec 2005
4
6
0
Jan 2006
2
2
0
Feb 2006
1
5
1
Mar 2006
0
1
0
May 2006
0
3
1
Jun 2006
0
1
0
Jul 2006
1
2
0
Aug 2006
5
5
0
Sep 2006
1
5
0
Oct 2006
0
3
0
Nov 2006
0
2
1
Dec 2006
1
3
1
Jan 2007
0
2
0
Feb 2007
1
3
0
Mar 2007
1
2
0
Apr 2007
2
0
0
May 2007
1
0
0
Jun 2007
1
1
0
Jul 2007
1
3
3
Aug 2007
1
1
0
Sep 2007
1
0
2
Oct 2007
1
0
1
Nov 2007
2
0
0
Dec 2007
2
1
0
Jan 2008
0
3
0
Mar 2008
2
0
0
Apr 2008
4
4
1
May 2008
1
0
0
Jun 2008
1
0
0
Aug 2008
1
1
0
Sep 2008
2
1
0
Oct 2008
2
1
0
Nov 2008
2
2
0
Dec 2008
1
2
0
Jan 2009
1
1
0
Mar 2009
7
0
0
May 2009
1
0
0
Jun 2009
0
1
0
Jul 2009
1
0
0
Aug 2009
1
1
1
Oct 2009
5
0
0
Nov 2009
4
2
0
Dec 2009
1
2
2
Jan 2010
4
0
0
Feb 2010
1
0
0
Mar 2010
0
0
1
May 2010
1
0
0
Jul 2010
0
0
1
Oct 2010
2
0
0
Nov 2010
2
0
0
Dec 2010
1
0
0
Jan 2011
1
0
0
Feb 2011
2
0
0
Mar 2011
1
0
1
Apr 2011
1
2
0
May 2011
1
0
1
Jun 2011
2
0
0
Nov 2011
13
1
0
Dec 2011
3
3
1
Jan 2012
4
1
0
Feb 2012
1
1
0
Mar 2012
0
1
0
Apr 2012
2
1
0
May 2012
2
1
1
Jun 2012
6
4
2
Jul 2012
5
2
4
Aug 2012
1
1
1
Sep 2012
1
4
3
Oct 2012
10
3
2
Nov 2012
0
3
0
Dec 2012
0
2
3
Jan 2013
0
6
0
Feb 2013
0
4
2
Mar 2013
0
13
2
Apr 2013
0
6
1
May 2013
0
9
10
Jun 2013
2
0
0
Aug 2013
2
2
0
Sep 2013
3
6
0
Oct 2013
4
2
0
Nov 2013
3
1
0
Dec 2013
5
2
0
Jan 2014
3
1
0
Feb 2014
4
12
0
Mar 2014
6
2
0
Apr 2014
6
1
1
May 2014
2
1
0
Jul 2014
5
2
0
Aug 2014
1
1
0
Sep 2014
2
3
0
Oct 2014
2
4
0
Nov 2014
0
2
0
Dec 2014
1
1
1
Jan 2015
0
1
0
Feb 2015
2
1
2
Mar 2015
1
1
0
Apr 2015
6
1
1
May 2015
2
1
0
Jun 2015
2
0
0
Jul 2015
2
1
3
Aug 2015
4
0
0
Sep 2015
2
0
0
Oct 2015
2
2
0
Nov 2015
2
0
1
Dec 2015
3
0
0
Feb 2016
2
2
0
Mar 2016
4
1
2
Apr 2016
0
0
2
May 2016
2
3
0
Jun 2016
2
2
4
Jul 2016
2
1
4
Aug 2016
0
1
0
Sep 2016
3
3
1
Oct 2016
1
3
1
Nov 2016
1
0
0
Dec 2016
4
4
0
Jan 2017
4
2
2
Feb 2017
1
1
1
Mar 2017
0
2
0
Apr 2017
0
3
0
May 2017
0
3
0
Jun 2017
2
4
3
Jul 2017
3
3
0
Aug 2017
5
5
0
Sep 2017
5
5
1
Oct 2017
5
5
0
Nov 2017
11
11
0
Dec 2017
15
15
0
Jan 2018
27
27
0
Feb 2018
7
7
1
Mar 2018
24
23
0
Apr 2018
11
11
1
May 2018
9
11
0
Jun 2018
19
13
0
Jul 2018
19
5
1
Aug 2018
7
7
2
Sep 2018
3
3
0
Oct 2018
7
7
1
Nov 2018
7
7
0
Dec 2018
17
17
0
Jan 2019
15
15
0
Feb 2019
15
13
3
Mar 2019
7
6
8
Apr 2019
3
3
3
May 2019
1
0
6
Jun 2019
2
2
2
Jul 2019
1
1
4
Aug 2019
1
1
3
Sep 2019
0
0
1
Oct 2019
6
6
4
Nov 2019
3
3
3
Dec 2019
3
3
2
Jan 2020
6
6
5
Feb 2020
3
3
1
Mar 2020
4
4
3
Apr 2020
2
2
2
May 2020
6
6
4
Jun 2020
5
5
1
Jul 2020
5
5
1
Aug 2020
2
2
3
Sep 2020
5
5
1
Oct 2020
6
6
2
Nov 2020
2
2
3
Dec 2020
8
8
1
Jan 2021
6
6
3
Feb 2021
1
0
3
Mar 2021
2
2
2
Apr 2021
3
3
1
May 2021
1
1
4
Jun 2021
2
2
0
Jul 2021
3
3
8
Aug 2021
3
3
4
Sep 2021
5
5
7
Oct 2021
4
4
16
Nov 2021
3
2
14
Dec 2021
11
10
1
Jan 2022
6
7
510
Feb 2022
4
4
3
Mar 2022
12
12
2
Apr 2022
6
6
3
May 2022
22
22
13
Jun 2022
15
15
5
Jul 2022
5
5
0
Aug 2022
16
16
2
Sep 2022
27
25
15
Oct 2022
18
15
5
Nov 2022
7
7
2
Dec 2022
2
2
2
Jan 2023
1
1
4
Feb 2023
31
31
1
Mar 2023
2
2
0
Apr 2023
4
4
1
May 2023
1
1
4
Jun 2023
1
1
0
Jul 2023
5
5
6
Aug 2023
1
1
4
Sep 2023
1
1
2
Oct 2023
1
1
2
Nov 2023
7
7
1
Dec 2023
18
3
0
Jan 2024
14
0
0
Feb 2024
6
0
1
Mar 2024
127
0
0
Total
1015
1162
824
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