O_Higgins 18Z msl_pressure 1983 - 987.4 988.8 997.8 999.7 992.5 989.3 989.1 993.3 983.8 981.7 984.5 1984 989.6 988.1 995.4 984.9 991.7 997.8 998.1 989.5 995.2 990.0 983.2 999.7 1985 - 986.1 991.0 988.6 996.0 1005.0 983.5 985.7 985.4 993.3 987.7 980.6 1986 986.0 989.1 989.5 989.9 998.9 - 984.5 984.5 985.2 990.8 982.2 983.2 1987 988.9 991.1 983.0 989.1 995.7 992.0 992.7 998.0 986.8 987.5 981.2 987.1 1988 - - - - - - - - - 1001.7 983.7 - 1989 - - - - - - 993.1 - - - 981.9 - 1990 - - - 990.3 1004.0 - - - - - - - 1991 - - - - - - - - - - - - 1992 - - - - - - - - - - - - 1993 - - - - - - - - - 981.8 984.9 984.1 1994 983.6 - - 994.7 - - - 988.9 - - - - 1995 - 991.1 983.0 992.7 992.4 989.1 989.5 992.8 986.7 991.9 981.5 985.0 1996 990.1 988.0 985.0 995.9 986.5 991.8 989.4 989.6 996.3 984.0 977.4 987.2 1997 988.4 993.2 988.1 986.3 997.4 1001.7 989.3 984.2 993.1 990.1 997.0 998.1 1998 985.3 992.9 989.7 992.9 997.9 994.9 979.9 986.5 990.4 - - 982.7 1999 988.6 984.9 994.7 986.3 992.3 997.1 989.2 987.6 990.3 983.5 986.2 981.5 2000 981.0 994.5 1001.9 986.7 996.9 995.7 1003.7 991.2 999.9 988.2 994.1 988.8 2001 989.8 988.4 988.4 987.8 998.4 991.7 995.5 979.3 989.0 982.4 979.2 982.0 2002 987.3 985.4 991.5 988.0 993.4 990.5 994.6 997.1 1002.1 989.4 989.6 989.6 2003 993.2 986.8 995.7 991.5 989.7 997.9 984.0 986.2 989.4 983.3 983.7 994.7 2004 987.0 995.2 988.4 - 992.0 986.8 989.5 988.6 977.3 - - 990.6 2005 986.0 984.3 990.8 983.5 994.6 996.1 996.5 990.6 998.6 990.6 989.9 993.9 2006 - - 980.6 991.0 - - 991.0 999.9 990.1 - 981.3 985.2 2007 988.6 987.6 987.3 990.6 - - 994.3 986.0 996.0 982.4 990.2 983.2 2008 986.2 988.2 990.3 987.8 993.0 992.9 995.5 990.5 998.6 - 983.5 979.7 2009 984.6 986.3 987.7 - - - - - - - - - 2010 991.1 - 988.2 - 986.8 986.7 - 990.5 - - 985.8 - 2011 992.2 988.6 - 986.5 990.3 991.8 - 1002.4 - 986.7 988.8 - 2012 984.5 - 990.8 996.4 994.6 977.9 989.0 989.4 993.4 981.6 986.4 993.4 2013 987.3 987.2 996.0 - 986.9 981.4 984.1 - 996.0 984.0 979.5 - 2014 991.6 989.0 - 995.8 - 994.1 - 995.9 997.8 980.5 979.7 981.6 2015 - 987.3 - - - - 984.3 982.7 983.6 991.3 982.6 - 2016 - - - - 1000.5 990.3 - 993.4 - - - - 2017 - 994.7 1001.5 993.1 991.3 987.7 985.4 987.3 978.1 983.1 986.2 - 2018 985.5 985.2 982.3 988.6 989.1 - 992.6 987.6 990.9 993.5 979.8 980.0 2019 984.6 990.4 991.0 986.2 988.6 992.5 1002.2 995.5 988.7 989.7 985.7 993.6 2020 990.8 993.9 988.1 989.4 997.3 992.3 1001.1 993.8 - - - - 2021 986.8 987.8 985.3 987.1 995.2 996.5 993.5 985.3 984.2 980.2 986.5 980.5 2022 987.3 986.8 - 988.7 993.7 986.9 989.0 993.1 988.4 978.0 980.7 985.0 2023 984.7 989.2 981.7 989.0 985.2 995.9 995.0 986.1 995.3 980.8 983.4 985.7 2024 985.3 987.4 989.7 983.0 - - - - - - - -