condition mean min max 3 h after light 28.9462 25.1038 35.2516 6 h after light 50.6023 29.1127 92.9815 9 h after light 73.1317 40.1328 95.6417 12 h after light 86.17585 70.1181 101.332 3 h after dark 142.09866666666665 123.198 165.194 6 h after dark 253.39499999999998 238.269 278.657 9 h after dark 275.315 230.035 356.536 12 h after dark 111.03569999999999 93.3594 128.712