condition mean min max 4 h after light 6.0817250000000005 6.05808 6.10537 8 h after light 6.185795000000001 5.4694 6.90219 12 h after light 9.811515 8.94533 10.6777 4 h after dark 13.934899999999999 12.5198 15.35 8 h after dark 11.128599999999999 9.1495 13.1077 12 h after dark 9.435905 9.0271 9.84471