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Volume 94, Issue 2
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This article has a correction. Please see:
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Online download statistics by month:
Online download statistics by month: January 2008 to February 2023
Abstract
Full
Pdf
Jan 2008
27
31
20
Feb 2008
19
17
13
Mar 2008
13
20
2
Apr 2008
9
14
4
May 2008
5
7
1
Jul 2008
2
0
0
Aug 2008
4
3
3
Sep 2008
1
0
0
Oct 2008
4
1
0
Nov 2008
4
0
0
Dec 2008
2
2
1
Jan 2009
4
0
1
Feb 2009
3
10
1
Mar 2009
3
10
1
Apr 2009
3
6
0
May 2009
5
8
1
Jun 2009
1
7
0
Jul 2009
2
8
2
Aug 2009
5
9
0
Sep 2009
11
9
1
Oct 2009
15
8
0
Nov 2009
4
8
0
Dec 2009
10
1
0
Jan 2010
21
0
2
Feb 2010
3
0
0
Mar 2010
5
3
0
Apr 2010
4
0
0
Jun 2010
1
0
0
Jul 2010
14
3
4
Aug 2010
62
10
11
Sep 2010
152
39
37
Oct 2010
49
30
12
Nov 2010
3
11
0
Dec 2010
1
1
1
Jan 2011
4
0
0
Feb 2011
10
5
3
Mar 2011
11
7
6
Apr 2011
7
6
3
May 2011
4
1
1
Jun 2011
8
0
1
Jul 2011
14
5
3
Aug 2011
14
7
0
Sep 2011
14
1
7
Oct 2011
2
1
1
Nov 2011
7
2
4
Dec 2011
10
8
8
Jan 2012
31
3
0
Feb 2012
5
0
0
Mar 2012
11
0
0
Apr 2012
8
2
0
May 2012
2
0
0
Jun 2012
11
0
0
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9
1
1
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7
24
2
Sep 2012
9
9
8
Oct 2012
8
10
20
Nov 2012
0
5
20
Dec 2012
0
20
7
Jan 2013
0
8
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0
19
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0
17
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Apr 2013
0
9
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May 2013
0
6
8
Jun 2013
5
3
0
Jul 2013
6
26
0
Aug 2013
4
46
0
Sep 2013
21
27
0
Oct 2013
8
19
0
Nov 2013
9
25
0
Dec 2013
2
0
0
Jan 2014
3
0
0
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2
0
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Mar 2014
6
0
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4
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6
1
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1
0
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3
1
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2
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3
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0
1
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1
0
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Jan 2015
1
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0
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14
0
1
May 2015
2
0
0
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1
0
1
Sep 2015
4
0
0
Oct 2015
1
0
0
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1
0
0
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3
2
2
May 2016
2
0
0
Jul 2016
2
0
0
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1
0
0
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3
0
0
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7
0
0
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9
0
0
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2
0
0
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3
0
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4
0
0
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4
0
0
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2
0
0
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1
0
0
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10
0
0
Jul 2017
4
0
0
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18
0
0
Sep 2017
20
0
0
Oct 2017
18
2
0
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25
0
0
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14
0
0
Jan 2018
33
0
0
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13
0
0
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31
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0
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18
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0
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30
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0
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30
0
0
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19
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20
0
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16
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12
0
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6
0
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20
0
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14
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12
0
2
Mar 2019
10
0
0
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10
0
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2
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8
0
0
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3
1
0
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2
0
0
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2
0
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10
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Jan 2020
10
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1
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4
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2
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2
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10
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6
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0
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14
2
0
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6
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0
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20
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3
0
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4
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6
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8
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4
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2
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11
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10
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18
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8
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4
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2
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2
0
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14
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4
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4
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9
1
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28
0
0
Dec 2022
12
0
0
Jan 2023
2
0
0
Feb 2023
46
0
0
Total
1537
609
228
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