condition mean min max 4 h after light 5.812459333333334 3.428871 8.223566 8 h after light 4.913069333333333 3.185814 6.179119999999999 12 h after light 8.989798 6.738281 12.13492 16 h after light 12.993910999999999 5.396463 20.412979999999997 4 h after dark 7.528468666666667 4.405644000000001 10.10635 8 h after dark 10.041552666666666 6.428134 13.882589999999999