condition mean min max 4 h after light 5.4 5.4 5.4 8 h after light 7.949999999999999 2.7 13.2 12 h after light 1.7999999999999998 1.2 2.4 4 h after dark 26.4 13.2 39.6 8 h after dark 9.75 3.4 16.1 12 h after dark 13.1 4.8 21.4