< Yearly occurrence number of Ground Level Events>

Year GLE Solar max. & min.
1942 2
1943 0
1944 0 solar min.
1945 0
1946 1
1947 0 solar max.
1948 0
1949 1
1950 0
1951 0
1952 0
1953 0
1954 0 solar min.
1955 0
1956 2
1957 0
1958 0 solar max.
1959 1
1960 5
1961 2
1962 0
1963 0
1964 0 solar min.
1965 0
1966 1
1967 2
1968 2 solar max.
1969 2
1970 0
1971 2
1972 2
1973 1
1974 0
1875 0
1976 1 solar min.
1977 3
1978 2
1979 1 solar max.
1980 0
1981 3
1982 2
1983 0
1984
1
1985 0
1986 0 solar min.
1987 0
1988 0
1989 7 solar max.
1990 4
1991 2
1992 2
1993 0
1994 0
1995 0
1996 0 solar min.
1997 1
1998 3
1999 0
2000 1 solar max.
2001 4
2002 1
2003 3
2004 0
2005 2
2006 1
2007 0
2008 0 solar min.
2009 0
2010 0
2011 0
2012 1