condition mean min max 4 h after light 6.7 6.7 6.7 8 h after light 4.3 2.1 6.5 12 h after light 25.450000000000003 17.3 33.6 4 h after dark 1.65 1.6 1.7 8 h after dark 18.9 12.5 25.3 12 h after dark 21.7 7.4 36.0