O_Higgins 12Z msl_pressure 1987 - - - - - - - - - - - - 1988 - - - - - - - - - 1001.6 - - 1989 - - - - - - 992.7 - - 982.3 - - 1990 - - - - - - - - 991.8 977.2 - - 1991 987.6 - 990.8 992.9 - - - - - - - - 1992 - - - - - - - - - - - - 1993 - - - - - - - - - 982.5 985.8 983.8 1994 - - - 995.2 - - 994.4 - - - - - 1995 - - - 992.5 - 988.7 - 992.3 - - 980.3 984.9 1996 - 988.0 985.4 995.3 986.7 991.6 989.2 989.0 996.5 982.5 975.4 989.2 1997 988.3 993.6 986.2 985.6 997.8 - 989.4 984.8 994.2 990.9 996.2 - 1998 - - 989.3 992.8 998.4 995.2 979.5 986.1 988.5 982.0 983.1 982.2 1999 989.0 983.7 995.0 987.0 990.5 997.2 989.6 987.2 990.7 981.5 985.9 981.7 2000 980.6 994.8 1001.1 987.2 - 997.4 1004.2 991.6 1000.3 987.2 994.7 989.5 2001 989.8 988.6 - 987.2 998.7 991.8 - 980.1 989.4 982.1 - 981.4 2002 - 985.7 991.5 - 993.3 990.0 994.2 997.2 1001.9 989.9 990.4 989.8 2003 993.5 986.7 995.8 992.3 990.0 997.4 983.9 - - 983.0 983.1 994.8 2004 985.8 999.3 989.4 991.3 989.8 987.1 989.3 989.1 978.3 - - 990.5 2005 986.6 984.7 990.3 983.2 994.6 996.3 996.8 991.0 998.3 991.5 989.1 993.7 2006 - - 981.1 992.4 - - - 1000.0 - - 981.6 985.2 2007 - 988.4 988.6 - - - - - 997.4 983.4 989.9 983.0 2008 985.9 988.7 990.7 988.1 992.5 993.4 994.7 989.6 998.1 - 983.0 979.5 2009 984.5 - - - - - - - - - - -