Jahr  MPECS Discovery Observations
1993      0         0            0
1994      0         0            0
1995      0         0            0
1996      1         0           13
1997      0         0            0
1998      6         1           31
1999     15         5           51
2000      0         0            0
2001     70        13          343
2002     25         7          144
2003      6         0           26
2004     24         1          169
2005    125         7         1941
2006     86         3          837
2007     12         0           78
2008     30         0          344
2009     33         4          256
2010     79         8         1337
2011     59         3          620
2012     51         5          403
2013     45         0          624
2014     30         7          258
2015     12         0           70
2016      0         0            0
2017      2         1           29
2018      6         0           42
2019      1         1            6
2020      1         0            2
2021      0         0            0
2022      0         0            0
2023      0         0            0