condition	mean	min	max
4 h after light	7.61792	7.52832	7.70752
8 h after light	6.6103749999999994	6.50777	6.71298
12 h after light	7.15198	6.8918	7.41216
4 h after dark	8.087299999999999	7.967	8.2076
8 h after dark	8.58576	8.33993	8.83159
12 h after dark	9.224409999999999	8.98244	9.46638