condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 2.93745 0.60073 6.65594 12 h after light 3.574413333333333 1.64393 6.3289 4 h after dark 4.365363333333334 1.24889 7.63698 8 h after dark 4.29207 1.96774 7.46748 12 h after dark 3.045603333333333 2.20677 3.53273