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      1         0            4
2001      4         0           32
2002      6         0           49
2003      0         0            0
2004      1         0            3
2005     12         0           64
2006     14         1          203
2007     18         0          128
2008     17         0          133
2009     10         0          144
2010     42         1          242
2011     11         0           75
2012      6         1           92
2013     14         0          124
2014      3         0           78
2015     10         0          128
2016      4         0           67
2017     10         0          117
2018      5         0           70
2019      5         2          106
2020     16         3          378
2021      5         0           51