condition mean min max 0 h after light 1.4221750000000002 1.29163 1.55272 4 h after light 2.851325 2.79008 2.91257 8 h after light 15.8113 15.13 16.4926 4 h after dark 9.862785 9.57717 10.1484 8 h after dark 4.01565 3.6432 4.3881 12 h after dark 1.353805 1.21133 1.49628