condition mean min max 0 h after light 9.50574 9.05618 9.9553 2 h after light 6.30948 5.77403 6.84493 4 h after light 5.75154 5.56156 5.94152 8 h after light 6.28431 5.53894 7.02968 12 h after light 12.3325 10.9948 13.6702 2 h after dark 16.742350000000002 16.3381 17.1466 4 h after dark 14.2675 13.7411 14.7939 8 h after dark 15.31805 14.0259 16.6102 12 h after dark 10.767405 9.88171 11.6531