condition mean min max 3 h after light 10.643600000000001 9.1132 12.1799 6 h after light 10.023813333333333 9.51584 10.3917 9 h after light 10.679926666666667 8.36997 13.8411 12 h after light 16.1875 11.0371 19.5199 3 h after dark 18.385233333333332 16.36 20.7242 6 h after dark 19.552599999999998 18.809 20.9061 9 h after dark 18.6831 16.7131 21.3957 12 h after dark 13.0733 11.0527 15.0051