Hi_Priestley_Gl 18Z pressure 1989 - 762.8 760.8 765.3 - - - - - 755.1 757.0 770.6 1990 770.7 - - - - - - - - - 769.2 771.5 1991 767.2 770.3 760.1 764.8 760.1 767.5 764.9 760.9 759.2 755.3 765.7 776.7 1992 771.8 773.8 763.9 760.8 764.4 769.6 761.1 764.0 752.3 756.1 - - 1993 - 764.0 764.3 - - - - - - - 761.0 766.7 1994 768.9 763.1 756.0 761.8 757.2 771.1 764.8 749.6 764.9 757.0 - - 1995 - - - - 755.3 - - - - - - - 1996 768.8 768.8 764.7 759.2 757.1 756.4 760.6 762.9 764.0 749.9 768.6 768.9 1997 770.8 768.1 758.2 760.2 752.0 762.9 753.8 - - - - 771.6 1998 766.9 764.8 757.9 752.7 758.3 756.0 755.2 754.7 759.4 758.6 756.2 767.0 1999 766.8 767.5 760.9 753.3 754.1 769.4 756.0 757.8 757.6 748.9 756.3 759.0 2000 761.9 763.4 761.8 760.0 759.3 762.1 762.9 762.1 766.5 752.6 763.7 774.1 2001 771.7 768.6 763.2 757.1 - - - - - - 757.5 762.8 2002 768.5 761.3 768.8 758.5 768.4 767.9 765.2 757.0 762.9 763.8 762.3 762.3 2003 773.8 769.6 761.4 755.2 757.9 766.9 759.4 755.9 757.1 755.3 760.0 774.5 2004 - - - - - - - - - - - 773.8 2005 769.4 761.5 760.9 757.3 761.2 764.8 758.4 754.1 759.1 755.1 762.3 777.6 2006 769.2 766.4 763.2 764.7 - - - - - 753.2 759.9 765.9 2007 771.3 763.7 768.1 761.7 765.5 764.6 771.9 758.3 757.1 759.0 762.5 761.3 2008 764.3 759.5 761.2 763.1 - - - - 755.5 751.5 760.6 765.3 2009 765.4 764.9 760.3 760.1 765.6 767.2 766.5 763.0 764.1 754.2 763.8 765.3 2010 777.1 769.0 761.9 758.3 760.3 756.4 750.7 754.9 755.2 755.4 757.7 772.5 2011 772.5 763.7 766.3 765.1 755.0 762.4 760.7 764.0 764.2 756.9 767.2 762.5 2012 761.9 767.3 760.8 759.3 - - - - - 755.0 766.6 770.9 2013 769.5 759.4 756.0 756.9 761.2 768.4 755.2 - - 758.8 - - 2014 - 765.2 760.0 760.3 761.2 758.2 759.6 754.4 - - 763.7 765.1 2015 767.0 760.8 760.4 756.4 760.8 760.2 - - - 754.6 757.1 768.6 2016 762.3 763.0 757.2 758.2 762.8 754.4 762.6 - 750.2 756.2 772.7 770.0 2017 772.9 770.4 764.5 760.4 757.0 758.1 757.0 752.9 - 759.2 - 765.4 2018 765.7 763.3 763.1 766.4 760.2 - - 764.0 751.8 753.3 758.5 765.0 2019 766.7 768.2 763.3 760.4 763.8 752.0 766.4 758.9 753.7 758.6 771.5 774.4 2020 772.0 764.5 756.4 761.3 758.0 758.1 759.7 - - - 757.2 761.7 2021 765.3 760.0 762.6 755.0 760.2 761.6 765.5 763.3 751.1 760.2 - - 2022 765.1 763.1 762.2 758.0 759.7 764.4 757.8 - - - 756.4 760.4 2023 762.1 766.1 763.7 766.5 756.9 - - - - - 761.2 760.9 2024 764.7 762.5 759.2 753.2 755.4 - 766.8 767.7 759.7 760.1 755.2 771.1 2025 769.7 765.8 757.8 754.9 759.5 761.7 761.0 - - 758.7 766.0 775.1 2026 - - - - - - - - - - - -