condition mean min max 4 h after light 5.082875 4.74265 5.4231 8 h after light 5.021265 4.95368 5.08885 12 h after light 6.172825 5.79065 6.555 4 h after dark 6.9199649999999995 6.10223 7.7377 8 h after dark 6.200665000000001 6.16002 6.24131 12 h after dark 6.2196549999999995 6.16402 6.27529