condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.01648025 0.0 0.0329605 2 h after dark 0.4331405 0.0 0.866281 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0389292 0.0 0.0778584 12 h after dark 0.0 0.0 0.0