condition	mean	min	max
4 h after light	17.14053	15.239556	19.041504
8 h after light	14.3111855	13.078068	15.544303
12 h after light	14.530458	14.33714	14.723776
4 h after dark	15.487443	15.487443	15.487443
8 h after dark	16.2110225	15.688143	16.733902
12 h after dark	16.577636	16.577636	16.577636