Jahr  MPECS Discovery Observations
1993      0         0            0
1994      0         0            0
1995      0         0            0
1996      0         0            0
1997      1         0           21
1998     18        13          101
1999      0         0            0
2000      1         0            6
2001      0         0            0
2002      1         0            9
2003      1         0            9
2004      1         0           12
2005      0         0            0
2006      0         0            0
2007      1         0            3
2008      0         0            0
2009      7         0           22
2010      6         0           24
2011      0         0            0
2012    121        49          497
2013     20        13           83
2014      3         2            9
2015     13        11           49
2016      9         3           27
2017      0         0            0
2018      3         2          114
2019     10         2          198
2020      6         0          202
2021      3         1           18
2022      6         2           79
2023      0         0            0
2024      0         0            0
2025      1         1            5