Jahr  MPECS Discovery Observations
1993      0         0            0
1994      2         0            6
1995      0         0            0
1996      0         0            0
1997      0         0            0
1998      0         0            0
1999      1         1            4
2000      0         0            0
2001     10         3           35
2002     20         6           96
2003     24         2          197
2004     23         2          223
2005      6         1           25
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      0         0            0
2014      0         0            0
2015      0         0            0
2016      0         0            0
2017      0         0            0
2018      0         0            0
2019      0         0            0
2020      0         0            0
2021      0         0            0
2022      0         0            0
2023      0         0            0
2024      0         0            0