Jahr  MPECS Discovery Observations
1993      1         0            2
1994      0         0            0
1995      1         0            3
1996      0         0            0
1997      0         0            0
1998      4         1           44
1999      2         0            9
2000     13         6           30
2001     16         9          105
2002      4         4           32
2003      2         1            4
2004     16         4           75
2005      7         0           36
2006      6         2           20
2007      5         1           26
2008      5         2           13
2009      9         0           26
2010      4         0           12
2011      5         0           10
2012      1         0            2
2013      0         0            0
2014      0         0            0
2015      0         0            0
2016      3         0           43
2017      6         0           17
2018      2         0           35
2019      1         1           35
2020      0         0            0
2021      0         0            0
2022      0         0            0
2023      0         0            0