condition mean min max 0 h after light 7.049795 6.15211 7.94748 2 h after light 3.27991 2.87608 3.68374 4 h after light 0.4093825 0.402032 0.416733 8 h after light 4.22521 2.96496 5.48546 12 h after light 6.06719 3.70733 8.42705 2 h after dark 9.538765 7.60043 11.4771 4 h after dark 9.048375 8.27816 9.81859 8 h after dark 9.037165 7.84233 10.232 12 h after dark 7.325365 5.89467 8.75606