condition mean min max 0 h after light 2.89865 2.87964 2.91766 2 h after light 3.38915 3.30614 3.47216 4 h after light 2.569965 2.45231 2.68762 8 h after light 2.686165 2.66441 2.70792 12 h after light 4.018575 3.6643 4.37285 2 h after dark 3.717285 3.21952 4.21505 4 h after dark 2.731675 2.62995 2.8334 8 h after dark 3.021045 2.97513 3.06696 12 h after dark 2.621575 2.43406 2.80909