condition mean min max 0 h after light 7.894795 7.17933 8.61026 2 h after light 9.389634999999998 8.38717 10.3921 4 h after light 6.236545 5.8658 6.60729 8 h after light 7.201165 7.19665 7.20568 12 h after light 13.1772 12.8026 13.5518 2 h after dark 12.7122 10.7647 14.6597 4 h after dark 9.107415 8.58083 9.634 8 h after dark 9.942699999999999 9.89641 9.98899 12 h after dark 7.86439 7.71866 8.01012