Butler_Island 18Z pressure 1986 - - 976.4 977.2 986.7 977.6 969.0 969.3 964.5 969.0 967.0 966.5 1987 976.4 978.8 970.1 978.4 986.4 977.7 - - - - - - 1988 - - - - - 963.5 - 982.2 980.6 987.1 972.4 969.5 1989 977.7 972.3 973.4 984.4 - - - - - - - - 1990 979.8 974.4 975.3 983.3 993.1 970.1 983.5 966.4 971.7 966.1 958.7 975.8 1991 970.9 - 978.1 980.7 977.3 975.4 981.3 968.2 978.8 968.7 969.5 - 1992 - 977.8 977.0 982.1 988.0 988.0 977.7 974.8 970.0 976.0 968.4 975.6 1993 986.5 978.5 973.2 976.3 - 977.5 977.4 973.3 970.5 963.9 - - 1994 - - - - 982.7 985.6 980.0 968.4 968.0 976.1 980.0 971.5 1995 974.2 973.2 973.0 980.7 976.2 980.4 987.0 977.5 971.2 - 969.0 967.6 1996 976.6 970.8 972.3 982.9 973.2 981.1 970.4 976.3 982.9 961.0 963.3 973.6 1997 974.0 979.4 968.3 976.4 976.1 986.7 973.8 971.1 977.5 976.1 983.5 982.0 1998 971.5 975.2 974.5 969.1 977.5 977.5 969.6 971.4 973.2 968.6 965.7 966.5 1999 970.8 - 980.0 968.9 973.0 984.9 974.7 971.5 974.5 960.6 969.5 962.3 2000 968.3 977.5 986.5 974.3 979.0 977.9 983.5 977.2 980.1 974.4 977.7 977.9 2001 977.0 980.8 - 975.3 982.0 980.1 981.7 959.1 967.1 959.2 962.6 961.1 2002 972.2 966.1 - 976.6 983.7 977.2 978.1 972.5 985.4 976.8 975.9 971.7 2003 - - - - - - - - - - - - 2004 - - - - - - - - - - - - 2005 - - - 957.6 - - - 959.3 - 954.4 959.4 967.0 2006 958.9 - 953.8 961.7 - - - - - - - - 2007 - 976.7 977.1 987.7 986.4 983.9 984.2 975.2 978.5 972.2 977.5 966.5 2008 971.8 972.8 980.3 977.5 976.0 979.8 978.9 967.6 976.4 971.1 968.2 961.6 2009 - - - - - - - - - - - -