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      4         0           66
2008      8         0           72
2009      1         0           33
2010      4         0           44
2011      0         0            0
2012      8         0          188
2013      0         0            0
2014      6         0           57
2015      2         0           57
2016      0         0            0
2017      0         0            0
2018      0         0            0
2019      1         1            3
2020      4         2           93
2021      4         0           60
2022      2         0           90