condition	mean	min	max
4 h after light	7.55081	7.4644	7.658580000000001
8 h after light	7.7387999999999995	7.67501	7.785539999999999
12 h after light	7.40493	7.1067	7.69797
4 h after dark	8.570453333333333	8.47098	8.660219999999999
8 h after dark	9.04369	8.8629	9.324019999999999
12 h after dark	9.756593333333333	9.5651	9.950280000000001