condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0846061 0.0678662 0.101346 12 h after light 0.061888 0.0 0.123776 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0271075 0.0 0.054215 12 h after dark 0.09831285000000001 0.0898767 0.106749