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      7         0           30
2002     62         0          220
2003     70         0          315
2004     24         0          145
2005      0         0            0
2006     37         0          235
2007     49         3          217
2008     63         8          343
2009     70        10          406
2010     57         6          205
2011     25         5          179
2012     15         2          101
2013     12         2           82
2014      0         0            0
2015      0         0            0
2016      1         0            2
2017      0         0            0
2018      0         0            0
2019      0         0            0
2020      1         0            1
2021      0         0            0