GF08 18Z pressure 1986 - - - - - - - - - - 740.4 - 1987 754.9 746.0 - 741.1 737.4 742.1 - 727.1 734.6 735.0 740.0 748.1 1988 - 743.0 744.8 - 749.0 751.5 - - - 746.0 741.6 744.5 1989 751.0 742.2 740.6 741.0 729.9 737.4 732.7 742.9 738.7 738.4 743.3 753.7 1990 750.1 743.7 743.1 750.1 749.7 744.0 743.0 735.5 730.3 740.1 744.1 749.5 1991 744.6 748.3 740.9 742.0 740.1 744.4 749.1 736.1 - 732.9 745.5 753.1 1992 749.6 751.6 744.1 737.8 743.6 747.6 735.5 735.5 - 738.2 739.3 744.9 1993 752.9 742.3 741.2 738.4 730.9 735.4 728.6 727.2 731.8 731.7 738.3 742.9 1994 747.5 742.7 737.1 739.3 741.1 751.9 739.5 731.7 738.4 734.9 745.0 741.0 1995 744.1 742.7 742.4 739.2 735.0 742.7 755.5 737.0 727.9 736.2 744.3 743.2 1996 749.0 747.4 738.9 739.6 736.9 743.4 741.4 741.3 743.5 735.1 747.7 748.2 1997 746.6 - - - - - - - - - - - 1998 - - - - - - - - - - - - 1999 - - - - - - - - - - - - 2000 - - - - - 747.5 745.9 746.9 748.0 737.7 754.3 758.9 2001 754.7 757.4 749.3 743.6 - - - - - - - 753.4 2002 751.9 746.9 755.6 748.3 757.2 750.9 749.0 738.4 745.6 752.8 748.9 749.8 2003 759.3 758.4 750.5 744.8 746.8 756.6 742.6 - 743.8 - - 760.2 2004 755.2 756.1 744.3 745.0 749.6 743.4 739.0 744.1 737.7 745.1 752.6 758.5 2005 756.1 748.6 751.8 742.1 747.4 754.0 744.3 740.8 741.4 743.1 749.3 764.0 2006 754.8 752.5 747.4 752.0 737.9 744.5 739.7 751.7 746.3 740.7 750.6 751.5 2007 753.7 - 757.3 757.5 751.9 750.0 - - - 752.3 752.9 755.3 2008 - - - - - - - - - - - - 2009 - - - - - - - - - - - - 2010 - - - - - - - - - - - - 2011 - - - - - - - - - - - - 2012 - - - - - - - - - - - - 2013 - - - - - - - - - - - - 2014 - - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - - - - - - - - - - 2018 - - - - - - - - - - - - 2019 - - - - - - - - - - - - 2020 - - - - - - - - - - - - 2021 - - - - - - - - - - - - 2022 - - - - - - - - - - - - 2023 - - - - - - - - - - - - 2024 - - - - - - - - - - - -