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     12        11           44
2000     92        81          274
2001     14        10           51
2002     91        79          271
2003     69        60          207
2004     99        82          320
2005    154       129          464
2006     72        62          229
2007    119       108          359
2008     71        63          202
2009     37        37          110
2010     53        49          156
2011     12        12           30
2012     35        34          102
2013      4         4           11
2014      2         2            5
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