|
Items
| 2013 |
217 |
3.51 |
| 2012 |
1,377 |
22.25 |
| 2011 |
1,117 |
18.05 |
| 2010 |
1,084 |
17.51 |
| 2009 |
667 |
10.78 |
| 2008 |
479 |
7.74 |
| 2007 |
153 |
2.47 |
| 2006 |
122 |
1.97 |
| 2005 |
95 |
1.53 |
| 2004 |
58 |
0.94 |
| 2003 |
118 |
1.91 |
| 2002 |
38 |
0.61 |
| 2001 |
60 |
0.97 |
| 2000 |
47 |
0.76 |
| 1999 |
18 |
0.29 |
| 1998 |
87 |
1.41 |
| 1997 |
65 |
1.05 |
| 1996 |
59 |
0.95 |
| 1995 |
63 |
1.02 |
| 1994 |
51 |
0.82 |
| 1993 |
26 |
0.42 |
| 1992 |
70 |
1.13 |
| 1991 |
10 |
0.16 |
| 1990 |
18 |
0.29 |
| 1989 |
33 |
0.53 |
| 1988 |
18 |
0.29 |
| 1987 |
6 |
0.10 |
| 1986 |
4 |
0.06 |
| 1985 |
1 |
0.02 |
| 1984 |
1 |
0.02 |
| 1983 |
1 |
0.02 |
| 1982 |
2 |
0.03 |
| 1980 |
21 |
0.34 |
| 1979 |
1 |
0.02 |
| 1978 |
1 |
0.02 |
|
|
|
Items per publication year
|
|
|
