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 0 0 0 2010 0 0 0 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 1 1 3 2018 58 30 203 2019 54 51 187 2020 81 74 326 2021 29 22 118 2022 6 4 18 2023 1 0 3