Jahr  MPECS Discovery Observations
1993      2         0           13
1994      0         0            0
1995      2         0            6
1996      2         0            5
1997     34        19          100
1998     32        11          137
1999     68         9          344
2000     35         9          309
2001     11         0           63
2002     13         3          109
2003     37         3          262
2004     26         1          208
2005     13         1           93
2006      7         0           64
2007      0         0            0
2008      5         0           22
2009      0         0            0
2010      3         0            8
2011     13         0           89
2012      0         0            0
2013      0         0            0
2014      0         0            0
2015      4         0           19
2016     12         0           92
2017     36         1          405
2018     29         2          250
2019     51         6          450
2020     24         5          213
2021      8         2           48
2022      0         0            0
2023      0         0            0
2024      0         0            0
2025      0         0            0