MPA 12Z 200hPa height 1987 - - - - - - - - - - - 11591.0 1988 11548.2 11798.1 11739.5 11538.7 11529.4 11345.2 11411.9 11254.5 11434.4 11365.2 11516.9 11569.0 1989 11645.9 11750.9 11693.6 11453.7 11491.2 11382.2 11534.5 11460.4 11414.6 11515.0 11597.8 11590.7 1990 - 11845.7 11660.0 11408.3 11447.6 11381.3 11432.0 11301.8 11388.9 11423.9 11428.0 11518.3 1991 11767.9 11733.3 11665.8 11555.4 11389.6 11337.0 11357.9 11402.9 11415.0 11416.8 11490.0 11526.8 1992 11741.7 11648.9 11711.9 11671.1 11353.8 11297.3 11440.9 11401.1 11384.2 11417.8 11614.8 11654.6 1993 11520.0 11782.8 11657.1 11519.3 11476.4 11452.3 11352.4 11399.3 11415.2 11526.2 11556.0 11545.0 1994 11685.8 11601.1 11688.6 11495.7 11344.4 11366.4 11356.2 11395.7 11317.3 11341.5 11571.4 11628.9 1995 11717.6 11712.6 - 11686.9 11465.2 11236.2 11127.4 11186.8 - 11507.7 11554.3 11693.5 1996 11616.4 11662.4 11624.5 11533.6 11521.0 11360.0 11479.2 11384.5 11479.6 11454.6 11476.0 11635.3 1997 11690.4 11628.3 11786.8 11508.2 11548.1 11387.1 11260.9 11363.1 - - - - 1998 11615.0 11721.1 11638.2 11751.1 11537.7 11452.3 11296.8 11287.0 11364.3 11448.8 11583.3 11574.6 1999 11700.4 11657.9 11676.2 11676.7 11467.3 11341.9 11333.5 11387.0 11311.9 11480.0 11645.0 11613.4 2000 11631.4 11728.6 11682.0 11585.2 11545.2 11389.6 11305.5 11292.9 11291.4 11411.2 11477.2 11432.3 2001 11633.6 11592.5 11631.4 11526.4 11483.1 11329.3 11290.7 11441.4 11460.7 11592.8 11577.7 11674.3 2002 11664.4 11758.3 11530.0 11530.9 11358.5 11273.5 11378.9 11443.3 11408.8 11386.9 11437.6 11624.3 2003 11546.3 11711.5 11668.5 11604.4 11505.9 11298.1 11394.8 11421.3 11387.5 11425.9 11401.5 11508.0 2004 11730.4 11860.0 11708.8 11482.6 11517.0 11375.3 11357.7 11425.2 11305.0 11480.4 11609.2 11591.7 2005 11614.7 11838.5 11609.0 11519.3 11378.3 11284.5 11411.9 11368.3 11511.4 11453.5 11503.4 11543.7 2006 11678.6 11760.8 11663.4 11590.7 11593.1 11401.5 11320.0 11322.0 11344.6 11492.3 11493.3 11555.2 2007 11669.6 11615.7 11576.7 11444.0 11435.4 11274.2 11274.0 11347.0 11518.6 11411.5 11430.3 11638.3 2008 11675.6 11743.5 11754.0 11414.3 11444.7 11382.8 11351.6 11249.6 11530.0 11411.4 11513.0 11662.6 2009 - - - - - - - - - - - - 2010 - - - - - - - - - - - - 2011 - - 11821.0 - - - - - - - - - 2012 - - - - - - - - - - - - 2013 - - - - - - - - - - - - 2014 - - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - - - - - - - - - - 2018 - - - - - - - - - - - - 2019 - - - - - - - - - - - - 2020 - - - - - - - - - - - - 2021 - - - - - - - - - - - - 2022 - - - - - - - - - - - - 2023 - - - - - - - - - - - - 2024 - - - - - - - - - - - -