condition mean min max 0 h after light 9.323765 8.88979 9.75774 2 h after light 13.823699999999999 13.5032 14.1442 4 h after light 10.779399999999999 10.5381 11.0207 8 h after light 9.791889999999999 9.63083 9.95295 12 h after light 18.47315 17.9445 19.0018 2 h after dark 23.02335 19.2183 26.8284 4 h after dark 16.166249999999998 13.9891 18.3434 8 h after dark 16.41175 16.3546 16.4689 12 h after dark 12.02755 11.35 12.7051