San_Martin 18Z msl_pressure 1983 - - - 994.5 - - - - 989.7 - - - 1984 - - - 980.7 991.9 - - - - - 981.5 - 1985 991.3 985.1 - 984.2 995.3 1004.1 - - 977.4 988.6 987.3 980.8 1986 986.6 - 987.7 986.8 998.8 - - - 981.9 987.7 - - 1987 - - 980.9 985.3 - - - 995.9 986.7 984.7 - - 1988 - - - - - - - - - - 981.0 - 1989 - - - - - - - - 984.0 977.1 981.7 - 1990 989.6 984.3 981.4 991.4 - 981.5 988.2 - 991.0 - 969.5 - 1991 980.8 - - 989.9 - - - - - - - - 1992 - - - - - - - - - - - - 1993 995.3 - 983.7 982.8 982.8 990.1 - 983.2 980.6 980.5 976.6 983.2 1994 982.6 982.8 - 990.2 995.0 994.9 993.2 979.4 977.4 988.7 988.0 - 1995 985.2 987.4 982.4 986.3 988.9 992.7 991.3 993.6 983.5 987.5 - 983.0 1996 988.3 984.7 982.7 994.4 981.1 992.2 985.1 988.6 988.1 979.5 974.9 - 1997 984.8 991.5 986.2 984.5 995.8 1002.9 989.7 982.6 993.7 988.8 997.0 998.2 1998 984.5 992.6 988.1 984.0 - 992.3 - - - 977.1 - 980.8 1999 985.0 - - 979.2 986.4 994.6 985.0 990.4 990.4 980.7 980.7 978.8 2000 978.2 991.0 1000.0 982.0 993.5 - 1000.2 991.5 999.8 988.1 993.2 989.8 2001 989.5 990.4 985.9 984.6 994.3 992.0 997.4 973.8 985.6 974.7 974.5 976.7 2002 - 979.8 992.4 - 997.2 993.1 992.9 997.8 1002.2 987.9 989.6 985.7 2003 992.3 983.5 994.6 990.8 988.3 997.4 977.6 - - - - 996.1 2004 986.0 993.5 984.4 - - 990.0 986.3 987.3 978.8 - - 990.9 2005 987.2 - 987.7 982.2 993.6 998.6 - - - - 991.7 - 2006 991.3 994.4 - 989.3 - - - 1001.5 989.4 - - 985.2 2007 992.0 988.8 989.0 992.1 996.0 993.5 996.5 983.6 990.6 982.6 990.6 982.3 2008 985.9 - 987.5 985.8 - 988.3 997.6 985.6 991.8 980.9 - - 2009 - - - - - - - - - - - -