condition	mean	min	max
4 h after light	39.1933	34.5005	43.8861
8 h after light	67.03355	66.8328	67.2343
12 h after light	52.9773	51.5592	54.3954
4 h after dark	53.92635	53.2958	54.5569
8 h after dark	49.363150000000005	48.2158	50.5105
12 h after dark	46.56915	45.6421	47.4962