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      0         0            0
2008      0         0            0
2009      0         0            0
2010      0         0            0
2011      4         2           12
2012     24         7           75
2013      6         3           18
2014      0         0            0
2015      0         0            0
2016      0         0            0
2017      8         0           33
2018      4         0           20
2019     10         5           43
2020      1         0            2
2021      0         0            0
2022      0         0            0
2023      0         0            0