condition mean min max 4 h after light 7.591279999999999 6.72196 8.4606 8 h after light 6.02285 5.53331 6.51239 12 h after light 7.114405 7.06951 7.1593 4 h after dark 10.763066666666667 10.3269 11.1733 8 h after dark 11.2605 10.7016 11.5454 12 h after dark 9.934043333333333 9.72999 10.3197