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      0         0            0
1999      0         0            0
2000     48         0          142
2001     29         0           74
2002     37         1          112
2003     15         0           43
2004     26         0           74
2005     12         1           25
2006      9         0           22
2007      4         0           11
2008      0         0            0
2009      1         0            2
2010      2         0            5
2011      1         0            2
2012      1         0            2
2013      1         0            2
2014      3         0            6
2015      1         0            2
2016      0         0            0
2017      1         0            2
2018      5         0           10
2019      5         0           12
2020      1         0            2
2021      2         0            2
2022      2         1            4
2023      0         0            0