condition mean min max 0 h after light 0.2532675 0.169046 0.337489 4 h after light 0.04298455 0.0 0.0859691 8 h after light 0.0834735 0.0 0.166947 4 h after dark 0.0415959 0.0 0.0831918 8 h after dark 0.08344635 0.0830962 0.0837965 12 h after dark 0.124553 0.084259 0.164847