Orcadas 12Z msl_pressure 1987 - - - - - - - - - - - - 1988 991.4 - - - - - - - - - - - 1989 - - - - - 985.7 999.8 - - 990.2 988.7 - 1990 - - - - - - - 983.8 995.9 - - - 1991 994.6 - - 996.8 - - - - - - - - 1992 - - - - - - - - - 989.5 - - 1993 - 994.4 990.3 988.9 991.7 993.8 - 991.6 987.7 985.1 991.1 986.6 1994 986.3 - 993.1 997.0 - 1000.1 994.9 996.1 987.5 988.6 - - 1995 - - - - - 986.4 990.1 993.5 - - 983.7 985.4 1996 - - 987.8 993.5 - 992.8 995.4 991.5 1004.3 990.9 - - 1997 992.5 - 990.5 - 999.7 1000.6 991.5 987.7 989.0 992.0 995.5 997.8 1998 986.2 - 993.1 - - 996.7 982.3 991.6 992.9 987.0 - 984.9 1999 993.5 - 999.1 990.5 - 998.5 993.6 - 992.5 985.6 991.9 986.8 2000 983.8 997.0 - 991.6 - 1000.8 1008.0 991.4 1002.6 988.2 995.4 992.0 2001 994.6 988.7 - 989.0 1003.8 991.7 992.0 988.3 993.0 991.8 - 989.4 2002 - 991.3 990.5 - 992.7 987.8 996.3 1000.5 1006.1 993.5 991.1 994.4 2003 992.5 992.7 - 994.0 994.7 - 986.6 - - - - 994.8 2004 989.8 998.4 - - 990.2 991.1 998.7 993.1 983.9 - - 994.7 2005 - - - 986.3 995.1 995.4 999.5 - - - - 990.6 2006 993.2 999.6 988.6 999.1 - - - 1002.1 994.4 - 986.4 989.3 2007 988.4 990.0 988.4 991.0 1000.4 990.0 995.4 993.2 1001.6 987.9 992.6 989.3 2008 990.2 993.6 992.0 990.5 999.2 996.2 1001.2 996.4 1006.5 991.9 986.3 981.0 2009 989.7 - - - - - - - - - - -