condition mean min max 4 h after light 17.776956666666667 14.672529999999998 21.54159 8 h after light 12.604251999999999 6.813746000000001 18.58488 12 h after light 15.215633333333333 11.83073 17.86844 16 h after light 21.374183333333335 13.573070000000001 32.831140000000005 4 h after dark 25.54812 23.42389 26.69489 8 h after dark 20.10284 10.577110000000001 31.444390000000002