condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.06524765 0.0641743 0.066321 8 h after light 0.0643955 0.0 0.128791 4 h after dark 0.0319629 0.0 0.0639258 8 h after dark 0.06437480000000001 0.0641047 0.0646449 12 h after dark 0.0 0.0 0.0