Marble_Point 00Z pressure 1980 - - 977.7 980.3 975.4 970.8 981.4 975.8 979.9 962.9 981.7 976.3 1981 - 978.3 980.5 982.1 974.3 968.2 977.0 984.8 977.4 970.4 967.2 969.0 1982 980.7 976.5 967.1 969.9 976.2 970.1 979.0 965.4 966.3 969.9 974.0 984.6 1983 982.5 984.6 975.3 969.9 975.8 977.9 971.1 - 973.2 959.8 963.3 975.6 1984 984.8 979.7 969.2 970.1 977.3 970.1 965.6 974.5 970.8 962.1 967.9 - 1985 - 978.5 977.1 978.0 - 974.5 964.9 975.3 966.5 966.7 963.3 972.4 1986 980.1 985.3 983.8 973.5 983.7 982.7 973.1 975.5 970.8 965.8 967.9 974.1 1987 985.5 980.4 978.6 981.2 976.0 979.5 984.7 967.2 980.1 971.3 970.5 977.7 1988 981.1 976.7 978.7 975.9 982.6 986.9 969.3 968.6 975.9 981.8 - - 1989 - 978.1 977.2 981.3 965.1 974.2 972.9 976.7 977.8 968.4 969.0 981.5 1990 981.4 974.2 978.5 985.5 989.8 981.4 990.6 974.5 965.8 974.4 976.4 977.0 1991 975.0 981.5 974.3 980.2 980.2 983.3 - 976.8 973.5 971.2 975.6 987.1 1992 980.5 988.3 979.7 977.9 984.3 987.2 975.5 978.3 967.9 972.8 970.4 975.0 1993 987.7 972.0 979.2 975.4 976.0 970.3 965.6 - - 969.3 972.6 975.2 1994 977.8 976.2 971.9 979.3 978.1 992.5 - - - 971.7 977.1 973.3 1995 973.2 974.3 984.0 976.8 974.4 982.1 994.0 979.9 971.8 973.2 971.1 970.7 1996 979.1 983.1 977.9 972.4 978.8 976.2 976.2 980.6 982.9 966.0 980.0 978.2 1997 980.9 982.4 973.0 979.0 967.2 980.9 972.8 - - 970.5 980.1 983.1 1998 977.7 973.6 975.4 969.3 976.2 - - - - - - - 1999 - 980.1 978.4 974.5 972.4 992.3 972.7 977.2 975.5 960.1 965.2 967.3 2000 970.9 976.1 977.4 976.8 977.2 979.4 975.6 977.6 982.7 969.6 974.1 988.0 2001 983.6 981.2 978.1 973.4 978.3 975.7 980.6 976.0 973.3 966.3 969.5 969.0 2002 975.9 971.2 983.6 975.1 985.4 987.7 982.2 972.3 980.0 983.0 976.5 971.4 2003 - - - - - - - - - - - - 2004 - - - - - - 970.5 - - - - - 2005 - - - 972.9 973.3 982.2 974.2 969.9 - 965.1 - 986.6 2006 - - - - - - - - - 969.9 972.2 975.9 2007 978.6 976.4 983.1 978.7 981.1 979.5 990.8 973.6 972.2 975.4 975.2 969.2 2008 973.0 973.1 977.9 979.5 977.6 970.7 973.9 975.4 967.0 967.1 - - 2009 - - - - - - - - - - - -