Jahr  MPECS Discovery Observations
1993      0         0            0
1994      0         0            0
1995      0         0            0
1996      0         0            0
1997      0         0            0
1998     22         3          172
1999     11         1           72
2000     13         2          567
2001     16         0          114
2002     18         0          280
2003     10         0           74
2004     24        16          133
2005     59        41          311
2006     78        36          411
2007     40        15          329
2008     46        20          202
2009     21        15           90
2010     15         8           44
2011      0         0            0
2012      0         0            0
2013      1         0            4
2014      0         0            0
2015      0         0            0
2016      0         0            0
2017      0         0            0
2018      0         0            0
2019      0         0            0
2020      0         0            0
2021      0         0            0
2022      0         0            0
2023      0         0            0