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     46         0          278
2010     22         0          147
2011      1         0            3
2012     41         0          199
2013     44         0          171
2014     21         0           81
2015     17         0           96
2016      9         0           35
2017      8         0           28
2018      2         0            6
2019     22         0          110
2020      7         0           21
2021      0         0            0