condition mean min max 3 h after light 5.4439675 3.00538 9.77798 7 h after light 5.557876666666666 2.53938 9.55905 11 h after light 7.0058291666666666 5.17518 8.49251 2 h after dark 7.71493 4.72409 11.4005 6 h after dark 6.2753925 4.52036 8.42473 10 h after dark 6.6603325 3.33988 10.1427