GF08 pressure 1986 - - - - - - - - - - 740.1 - 1987 754.8 746.5 740.8 - 737.6 - - 726.9 734.9 734.7 739.8 - 1988 - 743.2 - - - - - - - - 741.5 744.7 1989 - 742.2 - - 729.7 737.7 - 742.9 739.2 739.0 742.5 753.7 1990 750.7 743.5 - 749.4 749.2 743.9 744.3 735.5 - 740.2 743.9 749.4 1991 745.0 748.8 741.1 - 740.1 745.0 748.7 736.1 - 733.0 - 753.4 1992 749.6 751.8 744.1 737.6 744.1 747.0 735.9 - 728.5 737.9 740.1 744.7 1993 753.2 741.8 741.3 - 731.1 - - - - - - - 1994 - - - - - - - - - - - - 1995 - 743.2 742.0 739.2 735.2 742.6 755.9 736.7 727.8 735.7 744.1 743.6 1996 - 747.7 738.8 739.9 737.0 743.5 741.2 741.0 744.0 734.9 747.5 - 1997 746.7 - - - - - - - - - - - 1998 - - - - - - - - - - - - 1999 - - - - - - - - - - - - 2000 - - - - - 747.9 746.0 745.8 747.9 737.7 753.9 758.8 2001 754.5 757.7 749.2 743.7 - - - - - - - 753.6 2002 - 747.2 755.7 748.0 757.1 751.1 749.2 738.6 745.7 752.6 748.9 749.8 2003 759.4 758.5 750.6 744.7 - - - - 743.8 - - - 2004 755.3 756.1 744.3 744.9 750.1 743.1 739.2 744.5 737.6 745.1 752.3 758.5 2005 756.3 748.7 751.7 742.4 747.5 754.2 744.6 740.9 741.2 743.1 749.1 764.0 2006 754.9 752.7 747.6 751.8 737.8 744.6 739.6 752.1 746.4 740.7 750.5 751.5 2007 753.9 761.0 757.3 757.5 752.0 - - - - 752.1 753.1 755.1 2008 - - - - - - - - - - - - 2009 - - - - - - - - - - - - 2010 - - - - - - - - - - - - 2011 - - - - - - - - - - - - 2012 - - - - - - - - - - - - 2013 - - - - - - - - - - - - 2014 - - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - - - - - - - - - - 2018 - - - - - - - - - - - - 2019 - - - - - - - - - - - - 2020 - - - - - - - - - - - - 2021 - - - - - - - - - - - - 2022 - - - - - - - - - - - - 2023 - - - - - - - - - - - - 2024 - - - - - - - - - - - -