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     12         0           50
1999      5         0           18
2000     22         0           77
2001      2         0            6
2002     10         1           52
2003      3         0           24
2004      1         0            3
2005      2         0            4
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      0         0            0
2013      3         0            9
2014      7         0           15
2015     11         0           35
2016      5         0           12
2017      4         0           13
2018     11         0          127
2019      4         2          185
2020      0         0            0
2021      0         0            0
2022      0         0            0