condition mean min max 4 h after light 10.239905 9.87361 10.6062 8 h after light 7.34561 5.80015 8.89107 12 h after light 6.23743 6.12954 6.34532 4 h after dark 8.804993333333334 8.50332 9.34433 8 h after dark 9.678013333333332 6.87174 11.7814 12 h after dark 11.534699999999999 10.4827 12.1197