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      0         0            0
2012     21         1           57
2013     34         3          152
2014     29         3          103
2015     79         2          378
2016      7         0           24
2017     56         0          201
2018     28         0           82
2019     29         0          157
2020     14         0           42
2021      8         0           42
2022      0         0            0
2023      2         2            8