condition mean min max 4 h after light 1141.3 1141.3 1141.3 8 h after light 1028.1999999999998 987.8 1068.6 12 h after light 1200.8 915.1 1486.5 4 h after dark 1242.05 837.3 1646.8 8 h after dark 1096.8000000000002 1055.9 1137.7 12 h after dark 981.2 904.0 1058.4