slp   -30.0   -25.0   -20.0   -15.0   -10.0    -5.0     0.0     5.0    10.0    15.0    20.0    25.0    30.0    35.0    40.0
  70.0  1008.5  1008.1  1007.5  1006.7  1006.0  1005.6  1005.3  1005.3  1005.5  1005.9  1006.3  1006.7  1006.9  1007.1  1007.3
  65.0  1003.6  1003.3  1003.5  1004.0  1004.6  1005.3  1006.1  1007.0  1007.8  1008.7  1009.4  1009.8  1010.1  1010.4  1010.4
  60.0  1002.8  1003.0  1003.7  1004.9  1006.3  1007.6  1008.9  1010.2  1011.3  1011.9  1012.3  1012.8  1013.4  1013.9  1014.3
  55.0  1006.7  1007.1  1007.8  1008.8  1010.2  1011.6  1012.6  1013.4  1014.2  1014.9  1015.7  1016.4  1017.1  1017.6  1017.8
  50.0  1011.9  1012.3  1012.8  1013.5  1014.2  1015.1  1015.8  1016.6  1017.3  1017.8  1018.3  1018.9  1019.5  1019.6  1019.9
  45.0  1016.6  1016.9  1017.1  1017.1  1017.1  1017.2  1017.3  1017.1  1017.0  1017.5  1019.1  1019.8  1019.4  1018.9  1019.0
  40.0  1020.1  1020.1  1019.7  1019.0  1018.1  1017.6  1017.0  1016.4  1015.9  1016.2  1017.1  1017.8  1017.4  1017.3  1016.3
  35.0  1021.7  1021.3  1020.5  1019.4  1018.2  1017.4  1016.9  1016.6  1016.4  1016.5  1016.7  1016.0  1014.4  1013.9  1012.7
  30.0  1021.6  1020.9  1019.8  1018.5  1017.0  1015.8  1015.2  1015.2  1015.4  1015.9  1016.8  1016.0  1014.6  1012.6  1011.8