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     44         1          493
2003     97         1         2212
2004    123         4         3052
2005     85         5         1406
2006     72         3         1496
2007     40         2          865
2008     24         0          214
2009     32         1          232
2010     38         1          302
2011     31         0          232
2012      4         0           24
2013      4         1           32
2014     10         0           95
2015      2         0            6
2016      3         0           43
2017      3         0           19
2018      0         0            0
2019     17         2           98
2020      6         0           75
2021      2         0            5
2022      2         0            9
2023      0         0            0