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      5         0           25
2000     81         5          714
2001    110         3          788
2002    154         2         2511
2003    144         0         2330
2004    121         0         1775
2005    127         0         1785
2006    112         0         1567
2007    154         1         1384
2008    120         0         1330
2009    157         0         1500
2010    107         0          943
2011     35         0          663
2012     13         0          513
2013     28         0          962
2014     27         0          883
2015     18         0          532
2016     22         0          729
2017     23         0          900
2018     22         3          795
2019     27         4         1039
2020     26         7          623
2021     20         2         1080
2022     37         2         1243
2023      1         0           24