condition mean min max 4 h after light 8.7 8.7 8.7 8 h after light 8.950000000000001 2.6 15.3 12 h after light 51.800000000000004 13.9 89.7 4 h after dark 17.05 11.1 23.0 8 h after dark 7.05 5.1 9.0 12 h after dark 34.55 32.7 36.4