condition	mean	min	max
4 h after light	4.282633333333333	4.27384	4.292590000000001
8 h after light	4.249036666666666	4.2354199999999995	4.26645
12 h after light	4.259276666666667	4.17858	4.37866
4 h after dark	4.28564	4.26762	4.30199
8 h after dark	4.30818	4.1965699999999995	4.45176
12 h after dark	4.2728399999999995	4.0922	4.41426