condition mean min max 0 h after light 6.315035 6.07934 6.55073 2 h after light 2.822145 2.26289 3.3814 4 h after light 3.177285 2.29518 4.05939 8 h after light 2.637365 1.86625 3.40848 12 h after light 4.367625 4.00805 4.7272 2 h after dark 5.465785 5.1162 5.81537 4 h after dark 6.37078 6.08361 6.65795 8 h after dark 7.811475 7.53744 8.08551 12 h after dark 5.86484 5.54582 6.18386