condition mean min max 4 h after light 7.444789999999999 6.58532 8.30426 8 h after light 6.629975 6.11564 7.14431 12 h after light 7.433835 6.96998 7.89769 4 h after dark 8.575333333333333 7.18367 10.6223 8 h after dark 9.086156666666668 7.75347 10.025 12 h after dark 4.832206666666667 0.0 7.6518