Great_Wall 06Z msl_pressure 1987 - - - 987.4 - 992.3 993.0 1000.2 - 989.7 981.8 - 1988 - 991.2 988.1 - - - - - - - 984.0 984.2 1989 - 988.9 - 993.3 987.2 985.5 996.3 - 991.3 - 984.8 991.8 1990 991.4 991.7 985.7 991.1 - 984.3 - 981.0 993.7 977.7 - - 1991 - 991.2 990.7 993.0 - - - - - - - - 1992 - - - - - - - - - - - - 1993 - - - - - - - - - - 985.4 984.5 1994 985.4 986.5 994.4 996.0 996.8 - - - - 990.0 994.9 - 1995 - - 985.2 - 993.1 989.7 - - - - - - 1996 - 991.2 986.5 996.6 986.6 993.8 991.7 989.8 995.8 984.5 977.8 - 1997 - - 990.2 985.6 999.0 - 990.7 985.3 - - - - 1998 985.4 994.5 990.1 995.5 999.8 996.6 979.1 986.8 990.8 982.7 984.4 982.3 1999 990.6 984.5 996.0 987.6 - - - - - - - - 2000 982.6 996.5 1003.2 990.6 999.0 998.6 1005.2 992.8 1002.4 990.0 995.2 989.2 2001 - - - 988.0 999.6 991.6 - 983.6 - - - - 2002 - 986.7 992.2 988.2 993.8 990.7 994.0 999.1 1003.0 990.0 989.9 989.9 2003 994.6 987.1 997.8 995.3 991.9 997.7 985.2 - - 984.6 984.7 995.9 2004 986.0 998.9 - - 992.9 989.3 991.9 991.1 981.1 - - 991.0 2005 986.9 987.9 990.8 985.7 996.0 997.5 999.0 994.1 - 995.0 991.3 995.7 2006 - - - 989.4 - - 993.0 1001.2 991.5 - 983.3 - 2007 990.8 987.7 989.5 990.6 - - - - 999.4 - 991.8 985.6 2008 - - 992.4 988.8 994.5 994.6 997.8 994.8 1002.8 - 984.8 - 2009 986.0 - - - - - - - - - - -