condition mean min max 2 h after light 5.953083333333334 4.42229 8.24976 6 h after light 4.521468333333333 2.97512 6.51397 10 h after light 3.78132 2.37299 5.14007 14 h after light 3.5819533333333333 2.22617 5.11565 18 h after light 4.73831 3.53002 6.61874 2 h after dark 4.955465 3.38932 6.88723