condition mean min max 0 h after light 8.21724 7.0098 9.42468 4 h after light 12.598700000000001 10.9125 14.2849 8 h after light 23.1373 23.0967 23.1779 4 h after dark 22.048099999999998 18.1887 25.9075 8 h after dark 18.88795 17.6228 20.1531 12 h after dark 10.632465 8.28993 12.975