condition mean min max 2 h after light 11.28867 9.86351 12.0477 6 h after light 14.212633333333333 13.1409 14.8607 10 h after light 16.8243 15.2378 19.7679 2 h after dark 18.9512 18.0881 19.8264 6 h after dark 14.200566666666667 13.5185 14.9443 10 h after dark 8.409930000000001 7.59563 9.01443