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      0         0            0
2003      0         0            0
2004      0         0            0
2005      0         0            0
2006      0         0            0
2007      0         0            0
2008      0         0            0
2009      6         0           23
2010     67         0          641
2011     39         0          389
2012     43         0          400
2013     28         0          230
2014     55         0          581
2015     56         0          563
2016     20         0          190
2017     33         0          284
2018     37         0          346
2019     52         3          524
2020     48         4          481
2021      0         0            0