Halley_1_3 msl_pressure 1957 994.0 989.6 987.1 988.7 993.4 987.8 984.1 993.7 990.4 990.0 994.0 997.3 1958 989.6 993.7 985.9 991.2 995.2 988.7 992.1 982.1 980.6 980.2 988.6 986.8 1959 988.3 986.2 989.9 987.0 986.6 996.8 984.0 993.2 986.9 981.9 976.9 991.3 1960 987.9 991.1 978.1 988.5 994.1 991.4 983.3 986.1 988.7 986.5 982.8 986.8 1961 992.8 998.4 992.0 990.5 987.6 995.5 990.7 988.7 993.7 972.4 984.4 984.4 1962 986.7 989.8 985.3 984.0 991.4 999.7 986.4 987.2 986.3 984.1 989.7 988.7 1963 984.7 988.8 981.0 989.8 995.9 986.4 988.3 997.4 991.3 987.6 981.3 991.4 1964 996.2 991.7 985.2 986.9 982.7 1004.6 1008.0 991.1 981.1 980.4 993.8 993.3 1965 995.8 1000.8 986.9 991.0 996.7 981.9 991.3 994.0 989.5 987.1 979.1 998.8 1966 989.5 993.8 993.6 977.5 993.8 990.5 992.0 980.2 981.7 983.1 991.4 991.5 1967 997.4 995.3 989.7 993.7 991.9 992.7 986.4 987.0 988.2 984.6 989.1 991.0 1968 992.3 993.9 993.6 992.8 993.8 986.0 987.4 984.7 982.2 989.8 992.3 993.6 1969 1000.3 993.3 986.2 989.0 989.3 989.8 986.4 987.3 986.4 983.5 985.6 992.5 1970 988.8 989.6 989.7 988.7 991.7 992.4 991.4 986.6 992.0 989.9 989.3 995.3 1971 995.2 991.2 986.7 991.1 997.6 989.1 993.3 990.6 986.7 982.8 986.6 994.3 1972 996.8 991.6 993.6 995.2 990.9 993.1 999.7 994.5 989.0 986.6 983.7 992.2 1973 995.0 990.3 981.3 983.6 993.2 996.0 983.8 988.8 986.5 987.7 984.3 986.2 1974 995.8 985.6 986.2 991.7 982.7 995.9 987.6 998.7 976.5 988.3 995.0 997.6 1975 995.6 989.9 986.3 982.5 989.9 988.3 994.1 984.8 982.3 980.9 984.8 991.6 1976 995.4 989.4 989.7 984.6 987.0 990.3 990.5 978.0 980.0 976.7 995.0 1005.7 1977 997.0 989.0 989.7 992.1 989.3 993.5 991.0 992.3 978.8 979.7 986.2 993.1 1978 989.0 986.0 988.4 988.1 992.0 989.9 994.0 978.5 981.4 984.9 988.9 988.8 1979 991.1 988.9 985.0 981.6 984.9 987.1 979.2 988.2 987.5 984.4 990.3 997.1 1980 991.0 994.2 989.3 991.3 989.0 987.1 992.7 990.3 993.4 984.5 989.2 993.7 1981 990.9 988.0 995.6 988.2 992.0 987.9 991.6 993.8 985.6 983.7 981.4 982.8 1982 991.8 989.3 983.1 979.8 984.6 990.5 987.2 983.3 976.8 986.6 988.6 999.2 1983 - - - - - - - - - - - - 1984 - - - - - - - - - - - - 1985 - - - - - - - - - - - - 1986 - - - - - - - - - - - - 1987 - - - - - - - - - - - - 1988 - - - - - - - - - - - - 1989 - - - - - - - - - - - - 1990 - - - - - - - - - - - - 1991 - - - - - - - - - - - - 1992 - - - - - - - - - - - - 1993 - - - - - - - - - - - - 1994 - - - - - - - - - - - - 1995 - - - - - - - - - - - - 1996 - - - - - - - - - - - - 1997 - - - - - - - - - - - - 1998 - - - - - - - - - - - - 1999 - - - - - - - - - - - - 2000 - - - - - - - - - - - - 2001 - - - - - - - - - - - - 2002 - - - - - - - - - - - - 2003 - - - - - - - - - - - - 2004 - - - - - - - - - - - - 2005 - - - - - - - - - - - - 2006 - - - - - - - - - - - - 2007 - - - - - - - - - - - - 2008 - - - - - - - - - - - - 2009 - - - - - - - - - - - - 2010 - - - - - - - - - - - - 2011 - - - - - - - - - - - - 2012 - - - - - - - - - - - - 2013 - - - - - - - - - - - - 2014 - - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - - - - - - - - - - 2018 - - - - - - - - - - - - 2019 - - - - - - - - - - - - 2020 - - - - - - - - - - - - 2021 - - - - - - - - - - - - 2022 - - - - - - - - - - - - 2023 - - - - - - - - - - - - 2024 - - - - - - - - - - - -