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     24         0          874
2013     33         0         1663
2014     26         0          766
2015     16         0          611
2016      9         0          428
2017      9         0          494
2018      4         0          204
2019      3         2          131
2020     19         4          505
2021      2         0           98