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      2         0            8
2000      5         0           27
2001      7         0           39
2002     14         0           83
2003     51         4          401
2004     59         4          571
2005     24         1          391
2006     59         2          696
2007     67         2          886
2008     63         0          908
2009     56         0          639
2010      8         0          105
2011     28         0          487
2012     41         0          762
2013     28         0          518
2014     24         0          448
2015     24         2          391
2016     13         0          252
2017     36         0          810
2018      4         0           92
2019     10         3          132