condition mean min max 3 h after light 1.3484099999999999 1.0748 1.61944 6 h after light 0.791744 0.594894 1.06984 9 h after light 0.8058003333333333 0.75697 0.837233 12 h after light 1.2110665 0.560836 1.61969 3 h after dark 1.75756 1.56509 1.96869 6 h after dark 1.221165 0.497645 1.95299 9 h after dark 1.032063 0.950209 1.12399 12 h after dark 1.75169 1.60907 1.89431