condition	mean	min	max
4 h after light	6.112905	5.1635	7.06231
8 h after light	7.717035	7.52879	7.90528
12 h after light	10.79805	10.6356	10.9605
4 h after dark	16.0646	15.3665	16.7627
8 h after dark	16.18125	15.7556	16.6069
12 h after dark	12.2079	11.8635	12.5523