condition mean min max 0 h after light 18.3857 17.9542 18.8172 2 h after light 11.1073 11.0317 11.1829 4 h after light 9.148275 8.32492 9.97163 8 h after light 6.089615 6.05749 6.12174 12 h after light 14.8753 13.1343 16.6163 2 h after dark 12.6575 10.2901 15.0249 4 h after dark 21.217399999999998 19.8612 22.5736 8 h after dark 30.0608 24.5 35.6216 12 h after dark 22.333 19.0132 25.6528