condition mean min max 4 h after light 0.0739045 0.0 0.147809 8 h after light 0.0299387 0.0 0.0598774 12 h after light 0.0 0.0 0.0 4 h after dark 0.12829875000000002 0.0648425 0.191755 8 h after dark 0.0800785 0.0 0.160157 12 h after dark 0.058085250000000005 0.053101 0.0630695