condition	mean	min	max
4 h after light	3.95511	3.8969300000000002	4.05999
8 h after light	3.9465600000000003	3.8858300000000003	4.02146
12 h after light	3.9804500000000003	3.8494300000000004	4.16059
4 h after dark	3.9758433333333336	3.8866400000000003	4.14096
8 h after dark	3.8979100000000004	3.67315	4.0925400000000005
12 h after dark	3.950723333333333	3.8281699999999996	4.18239