COSMIC RAY RESEARCH UNIT, POTCHEFSTROOM UNIVERSITY, POTCHEFSTROOM IGY NEUTRON MONITOR, POTCHEFSTROOM, SOUTH AFRICA COORDINATES 26 41 S, 27 06 E ALTITUDE 1351 METERS REAL COUNTS 100 TIMES TABULATED VALUES UNCORRECTED COUNTS DATE DAY UT 01 02 03 04 05 06 07 08 09 10 11 12 DAILY MEANS 13 14 15 16 17 18 19 20 21 22 23 24 1 12 1991 335 1970 1958 1944 1956 1966 1944 1957 1966 1959 1986 1989 2005 2012 1987 2002 1989 1998 1992 1983 1965 1962 1962 1971 1960 1974.3 24 2 12 1991 336 1959 1964 1954 1961 1937 1937 1950 1954 1955 1967 1994 1992 1992 2020 2030 1996 2014 1974 1942 1946 1948 1928 1949 1951 1967.3 24 3 12 1991 337 1958 1958 1959 1963 1944 1934 1940 1938 1941 1957 1965 1991 1991 1990 1986 2002 1984 1970 1962 1937 1943 1952 1960 1965 1962.1 24 4 12 1991 338 2004 2003 1983 1974 1976 1977 0 1967 1971 1973 1984 1993 2014 2026 2034 2009 2023 2016 2002 2011 1971 1972 1941 1964 1990.8 23 5 12 1991 339 1966 1958 1954 1938 1949 1943 1938 1927 1933 1930 1958 1965 1957 1976 1978 1976 1974 1961 1950 1943 1930 1934 1921 1931 1949.6 24 6 12 1991 340 1929 1953 1930 1926 1925 1913 1912 1915 1934 1914 1930 1962 1948 1979 1984 1988 2001 1976 1973 1963 1963 1957 1976 1977 1951.2 24 7 12 1991 341 1976 1988 1982 1985 1953 1967 1978 1973 1978 1984 1988 2009 2022 2026 2030 2035 2044 2023 2008 2012 2008 2003 2012 2029 2000.5 24 8 12 1991 342 2014 2020 2026 2023 2019 2014 2015 2012 2009 2016 2020 2021 2042 2052 2038 2046 2042 2022 2034 2022 2017 2004 2019 2028 2024.0 24 9 12 1991 343 2014 2006 2007 1992 1980 1987 1968 1968 1984 1976 1978 2009 2018 2028 2019 2030 2017 2031 1996 1983 2000 1998 2007 1996 1999.7 24 10 12 1991 344 1990 1998 1985 1974 1958 1980 1960 1963 1976 1976 2000 1988 1996 1974 1971 1979 1987 1992 1987 1976 1980 1986 1951 1974 1979.2 24 11 12 1991 345 1958 1958 1965 1951 1952 1951 1949 1958 1973 1983 1970 1979 1995 2008 2028 2019 2014 2018 1994 1976 1956 1990 1982 2009 1980.7 24 12 12 1991 346 1977 1974 1975 1966 1945 1946 1957 1945 1960 1962 1985 1973 1983 1988 2005 2004 1997 1993 1987 1960 1964 1977 1961 1955 1972.5 24 13 12 1991 347 1966 1961 1956 1953 1924 1934 1951 1944 1943 1935 1966 1990 1995 2006 2009 2016 2017 1997 1975 1962 1951 1959 1957 1974 1968.4 24 14 12 1991 348 1977 1985 1960 1964 1954 1957 1948 1961 1946 1969 1970 1998 2016 2017 2025 2015 2027 2017 2000 1969 1988 1981 1976 1994 1983.9 24 15 12 1991 349 1994 1987 1966 1974 1969 1955 1966 1985 1981 1990 1997 2020 2038 2026 2034 2012 2025 2000 1995 1985 1984 1967 1986 1982 1992.4 24 16 12 1991 350 1973 1981 1969 1965 1939 1951 1950 1950 1965 1972 1972 1978 2013 2032 2027 2037 2025 2023 1992 1991 1969 1960 1971 1979 1982.7 24 17 12 1991 351 1981 1989 1976 1971 1969 1945 1952 1963 1964 1980 1995 2016 2033 2048 2052 2043 2049 2059 2036 2020 2022 2012 2000 2004 2003.3 24 18 12 1991 352 2020 2016 2018 2009 1988 1990 1991 1985 1993 2015 2017 2024 2047 2044 2038 2035 2043 2033 2014 2020 2009 2002 2003 2014 2015.3 24 19 12 1991 353 2020 2013 2006 2005 2003 1992 1993 1991 1989 2017 2032 2031 2032 2037 2017 2031 2011 2020 2005 1999 2027 2030 2014 2033 2014.5 24 20 12 1991 354 2009 2016 2002 1980 1986 1973 1987 1982 1984 1992 1992 2000 2010 2017 2020 2004 2000 1992 1992 1970 1991 1986 1981 1986 1993.8 24 21 12 1991 355 1980 1963 1968 1962 1972 1949 1971 0 1964 1978 1979 1987 1997 1992 1997 1999 1984 1961 1967 1954 1951 1960 1969 1968 1972.7 23 22 12 1991 356 1962 1969 1961 1958 1957 1960 1955 1963 1971 1975 1992 1996 2010 2024 2027 2011 2004 2006 1992 1983 1984 1958 1980 1994 1983.0 24 23 12 1991 357 1994 2006 1991 1992 1997 1997 1983 1992 2014 2016 2019 2034 2061 2066 2055 2056 2058 2047 2031 2010 2019 1994 2021 2013 2019.4 24 24 12 1991 358 2015 2027 2012 2007 2015 1976 1983 1986 1994 2008 2012 2031 2035 2048 2054 2062 2036 2013 2020 2011 2017 1988 1982 2003 2014.0 24 25 12 1991 359 2006 2003 2013 2040 2010 2008 2014 1999 2014 2004 2019 2030 2050 2045 2064 2070 2061 2046 2027 2033 2030 2040 2028 2040 2028.9 24 26 12 1991 360 2036 2048 2054 2045 2039 2036 2025 2031 2031 2041 2058 2061 2085 2084 2068 2074 2076 2087 2058 2045 2026 2030 2030 2039 2050.3 24 27 12 1991 361 2034 2023 2012 2009 1988 1993 1981 1989 2010 2016 2019 2048 2048 2058 2050 2057 2040 2046 2040 2031 2040 2056 2046 2026 2027.5 24 28 12 1991 362 2028 2022 2009 2000 2001 1966 1988 1978 2000 1990 2003 2014 2008 2028 2026 2024 2023 2016 2008 1991 1990 1998 1980 1973 2002.7 24 29 12 1991 363 1976 1950 1954 1955 1950 1913 1913 1929 1919 1923 1922 1943 1937 1955 1943 1953 1931 1925 1911 1918 1925 1905 1928 1925 1933.5 24 30 12 1991 364 1944 1932 1928 1929 1903 1911 1895 1907 1914 1912 1940 1950 1959 1959 1983 1984 1978 1976 1942 1951 1959 1941 1950 1946 1941.4 24 31 12 1991 365 1942 1951 1939 1944 1940 1931 1952 1944 1955 1966 1978 2004 2007 2032 2020 2015 2005 1991 2001 1975 1958 1950 1956 1958 1971.4 24 MONTHLY MEANS 1986 1986 1979 1976 1968 1962 1964 1966 1972 1978 1988 2001 2011 2018 2020 2018 2016 2007 1994 1984 1983 1980 1981 1987 1988.7 U-12