Jahr  MPECS Discovery Observations
1993      0         0            0
1994      0         0            0
1995      0         0            0
1996      1         0            3
1997     10         1           40
1998     40        14          211
1999     45        23          212
2000     23         8          130
2001     56        17          233
2002    106        35          546
2003    247       110         1101
2004    103        55          347
2005      7         1           58
2006      8         3           20
2007      8         2           37
2008     12         4           78
2009      0         0            0
2010      0         0            0
2011      0         0            0
2012      0         0            0
2013      0         0            0
2014      0         0            0
2015      0         0            0
2016      1         0            4
2017      0         0            0
2018      0         0            0
2019      0         0            0
2020      2         0            6
2021      0         0            0
2022      0         0            0
2023      0         0            0