condition mean min max 4 h after light 35.6869 32.0604 39.3134 8 h after light 10.310925 9.15735 11.4645 12 h after light 3.435985 3.22501 3.64696 4 h after dark 8.24147 8.07531 8.40763 8 h after dark 22.7393 22.1507 23.3279 12 h after dark 32.992149999999995 31.0717 34.9126