|
Items
| 2013 |
99 |
1.65 |
| 2012 |
1,329 |
22.20 |
| 2011 |
1,110 |
18.54 |
| 2010 |
1,062 |
17.74 |
| 2009 |
661 |
11.04 |
| 2008 |
478 |
7.98 |
| 2007 |
153 |
2.56 |
| 2006 |
122 |
2.04 |
| 2005 |
95 |
1.59 |
| 2004 |
58 |
0.97 |
| 2003 |
118 |
1.97 |
| 2002 |
38 |
0.63 |
| 2001 |
60 |
1.00 |
| 2000 |
47 |
0.79 |
| 1999 |
18 |
0.30 |
| 1998 |
87 |
1.45 |
| 1997 |
65 |
1.09 |
| 1996 |
59 |
0.99 |
| 1995 |
63 |
1.05 |
| 1994 |
50 |
0.84 |
| 1993 |
26 |
0.43 |
| 1992 |
70 |
1.17 |
| 1991 |
10 |
0.17 |
| 1990 |
18 |
0.30 |
| 1989 |
33 |
0.55 |
| 1988 |
18 |
0.30 |
| 1987 |
6 |
0.10 |
| 1986 |
4 |
0.07 |
| 1985 |
1 |
0.02 |
| 1984 |
1 |
0.02 |
| 1983 |
1 |
0.02 |
| 1982 |
2 |
0.03 |
| 1980 |
21 |
0.35 |
| 1979 |
1 |
0.02 |
| 1978 |
1 |
0.02 |
|
|
|
Items per publication year
|
|
|
