condition mean min max 0 h after light 0.96514 0.0 1.93028 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 4 h after dark 0.951635 0.0 1.90327 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0