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      0         0            0
2001     63         6          508
2002     82         4          922
2003    104        16          985
2004     78        11          828
2005     97        32          760
2006     99        22          981
2007     51         8          381
2008     38         9          251
2009     48        11          335
2010     22         6          121
2011     21        11           98
2012     15         8           66
2013      8         6           34
2014      6         2           26
2015      1         0            2
2016      2         0            7
2017      8         6           49
2018     10         8           54
2019      7         5           44
2020      8         5           43