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      3         0           12
2010      3         0           28
2011      0         0            0
2012      0         0            0
2013      0         0            0
2014      0         0            0
2015      3         0          460
2016      2         0          100
2017      1         0           73
2018      2         0           81
2019      2         1          145
2020      3         0          331
2021      5         0         1232
2022      5         0          677
2023      1         0           17