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      0         0            0
2002      0         0            0
2003      0         0            0
2004      0         0            0
2005      0         0            0
2006      0         0            0
2007      1         0            4
2008      5         0           75
2009      0         0            0
2010     12         0          235
2011      8         0          106
2012      4         0           72
2013      3         0           23
2014      6         0           37
2015      4         0           61
2016      2         0           18
2017      5         0           95
2018      3         0          140
2019      1         1           18
2020      1         1           26
2021      0         0            0