condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0852965 0.0 0.170593 12 h after light 0.0 0.0 0.0 4 h after dark 0.17209433333333332 0.0 0.280614 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0