condition mean min max 3 h after light 6.850769166666667 1.54045 21.1836 7 h after light 7.0134425 3.42148 20.6904 11 h after light 7.251548333333333 3.21356 9.90478 2 h after dark 6.819475 3.34218 18.0406 6 h after dark 5.546535 2.00047 11.3484 10 h after dark 5.075296666666667 1.90532 10.648