Orcadas 00Z msl_pressure 1987 - - - - - - - - - - - - 1988 - - - - - - - - - 1004.7 - - 1989 - - - - - - - - - - - - 1990 - 994.2 - 986.4 - - - - - 981.9 - - 1991 - - - 995.5 - - - - - - - - 1992 - - - - - - - - 993.7 992.0 - - 1993 - 994.8 989.8 990.0 993.6 993.4 998.7 991.4 987.5 984.5 990.4 987.8 1994 986.0 - 992.5 997.4 - - 993.5 996.2 - - - - 1995 - - - - - 985.6 990.8 - - 996.8 983.2 987.5 1996 994.7 997.2 988.0 993.4 988.8 992.8 994.0 991.6 1005.4 988.4 - - 1997 - 993.4 990.2 986.2 999.7 1000.8 991.3 989.3 988.7 993.0 994.6 998.6 1998 986.6 991.7 993.8 997.0 996.8 996.7 982.7 990.3 990.1 987.2 989.1 983.1 1999 993.0 989.2 999.2 990.8 994.9 998.9 993.7 988.3 993.4 986.3 992.5 987.0 2000 984.0 997.2 - 991.9 - - 1008.3 991.2 1002.1 - 995.2 991.8 2001 994.8 988.1 990.9 990.3 1004.0 991.9 991.2 988.0 992.9 992.8 - - 2002 - 990.6 990.6 991.6 993.3 989.2 996.1 999.9 1006.5 994.1 992.3 994.6 2003 992.8 992.8 994.1 995.5 995.1 1001.4 988.7 - - - 983.7 995.3 2004 990.0 999.1 - - 990.8 991.7 996.6 993.4 982.8 - - 995.5 2005 - 989.2 - 984.5 997.0 - 999.2 - - 998.4 989.6 991.0 2006 993.6 998.3 988.8 997.3 - 997.6 - 1000.9 994.1 - 986.2 990.5 2007 988.4 990.2 988.6 991.2 1000.8 990.4 995.2 992.3 1001.5 988.8 992.7 989.0 2008 990.4 - 993.6 990.2 998.6 997.1 1001.8 995.7 1006.8 992.1 985.4 983.1 2009 990.6 - - - - - - - - - - -