condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.395577 0.0 0.699005 9 h after light 0.299956 0.0 0.899868 12 h after light 0.40018225 0.0 1.37941 3 h after dark 0.23911633333333335 0.0 0.717349 6 h after dark 0.0 0.0 0.0 9 h after dark 0.2596773333333333 0.0 0.779032 12 h after dark 0.1099335 0.0 0.219867