condition mean min max 4 h after light 1.1 1.1 1.1 8 h after light 3.0500000000000003 1.7 4.4 12 h after light 3.1999999999999997 1.3 5.1 4 h after dark 1.55 1.3 1.8 8 h after dark 9.35 1.3 17.4 12 h after dark 7.199999999999999 2.2 12.2