Jahr  MPECS Discovery Observations
1993      0         0            0
1994      0         0            0
1995      1         0            2
1996      0         0            0
1997      0         0            0
1998      4         1           37
1999      0         0            0
2000      0         0            0
2001      0         0            0
2002      4         1           66
2003      1         0            3
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      0         0            0
2012      0         0            0
2013      0         0            0
2014      2         0            5
2015      3         0            6
2016      0         0            0
2017      1         0            7
2018      0         0            0
2019      4         3           16
2020     27        21           96
2021      1         1            3