Jahr  MPECS Discovery Observations
1993      0         0            0
1994      0         0            0
1995      0         0            0
1996      0         0            0
1997     36         1          879
1998     12         0          256
1999     30         0          754
2000     91         0         2249
2001     50         0         2037
2002     69         0         2522
2003     12         0          436
2004     76         0         5576
2005     49         0         3660
2006     32         0         2444
2007     35         0         2746
2008     48         0         3500
2009     40         0         2357
2010     43         0         3263
2011      2         0          207
2012      1         0           39
2013      3         0         2743
2014      1         0           54
2015      2         0          557
2016      2         0          324
2017      0         0            0
2018      0         0            0
2019      0         0            0
2020      2         1          590
2021      0         0            0
2022      0         0            0
2023      5         4          410