Jahr MPECS Discovery Observations 1993 1 0 13 1994 5 0 28 1995 3 0 10 1996 9 0 37 1997 10 1 39 1998 51 13 228 1999 35 9 196 2000 77 19 526 2001 65 3 340 2002 88 2 452 2003 88 2 312 2004 43 1 106 2005 34 0 106 2006 33 0 105 2007 18 0 53 2008 3 0 14 2009 3 0 10 2010 1 0 3 2011 0 0 0 2012 0 0 0 2013 0 0 0 2014 0 0 0 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