condition mean min max 0 h after light 3.94852 2.64478 5.25226 2 h after light 6.40812 4.06404 8.7522 4 h after light 7.75961 7.23074 8.28848 8 h after light 3.820725 3.74035 3.9011 12 h after light 5.482585 3.98445 6.98072 2 h after dark 5.533025 4.56935 6.4967 4 h after dark 4.389625 4.16095 4.6183 8 h after dark 4.502905 2.58986 6.41595 12 h after dark 3.670358 0.906466 6.43425