Jahr  MPECS Discovery Observations
1993      1         0           13
1994      5         0           28
1995      3         0           10
1996      9         0           37
1997     17         1           58
1998     56        13          258
1999     42         9          222
2000    115        19          829
2001     89         3          468
2002    121         2          619
2003    130         2          460
2004     65         1          165
2005     53         0          167
2006     53         0          162
2007     23         0           66
2008      3         0           14
2009      6         0           22
2010      2         0            6
2011      0         0            0
2012      0         0            0
2013      0         0            0
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