condition mean min max 4 h after light 9.221575 8.31935 10.1238 8 h after light 9.6878 8.5724 10.8032 12 h after light 9.845985 9.76064 9.93133 4 h after dark 9.620803333333333 9.11618 10.4315 8 h after dark 9.090276666666666 8.20664 10.357 12 h after dark 10.25674 9.40322 11.0707