condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 1.1033975 0.0 4.41359 3 h after dark 0.0 0.0 0.0 6 h after dark 2.3226333333333335 0.0 6.9679 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0