condition mean min max 0 h after light 9.684755 9.55832 9.81119 2 h after light 3.9904 3.48868 4.49212 4 h after light 3.782515 3.12312 4.44191 8 h after light 4.200665 4.19268 4.20865 12 h after light 6.50364 6.32554 6.68174 2 h after dark 8.9245 8.54254 9.30646 4 h after dark 10.8749 10.569 11.1808 8 h after dark 12.0015 10.5009 13.5021 12 h after dark 9.69311 7.67202 11.7142