condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0168152 0.0158244 0.017806 4 h after dark 0.016756033333333333 0.0 0.0502681 8 h after dark 0.007444466666666667 0.0 0.0223334 12 h after dark 0.0069391999999999995 0.0 0.0208176