condition	mean	min	max
4 h after light	6.249765	5.06486	7.43467
8 h after light	8.39319	7.70609	9.08029
12 h after light	6.03998	5.38025	6.69971
4 h after dark	7.209524999999999	6.0462	8.37285
8 h after dark	6.96675	6.95988	6.97362
12 h after dark	6.54846	5.89997	7.19695