condition mean min max 0 h after light 6.245365 6.1958 6.29493 2 h after light 6.179869999999999 5.22507 7.13467 4 h after light 4.785125000000001 4.7514 4.81885 8 h after light 5.87069 5.85953 5.88185 12 h after light 6.8442799999999995 6.50298 7.18558 2 h after dark 8.81926 8.57925 9.05927 4 h after dark 7.5846350000000005 6.85695 8.31232 8 h after dark 9.48413 8.58376 10.3845 12 h after dark 5.596550000000001 4.60766 6.58544