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 34 15 132 1999 57 19 213 2000 125 61 721 2001 196 68 1867 2002 192 27 1346 2003 268 70 2161 2004 220 54 2057 2005 239 49 2477 2006 162 28 1667 2007 131 13 1260 2008 26 2 330 2009 4 0 16 2010 2 0 8 2011 2 0 8 2012 1 0 4 2013 4 0 28 2014 4 0 24 2015 0 0 0 2016 0 0 0 2017 5 0 23 2018 1 0 4 2019 5 0 24 2020 3 2 17 2021 0 0 0