condition mean min max 3 h after light 2.46271 2.12241 2.88225 6 h after light 2.9685466666666667 2.51889 3.47469 9 h after light 3.24019 1.65433 4.64742 12 h after light 3.99141 2.30256 6.19805 3 h after dark 4.445116666666666 3.95701 5.37012 6 h after dark 6.0527066666666665 5.01318 7.02372 9 h after dark 6.88355 6.34558 7.45634 12 h after dark 6.287885 5.95488 6.62089