condition	mean	min	max
4 h after light	5.21177	5.0687	5.46914
8 h after light	5.02752	4.9572400000000005	5.08234
12 h after light	5.140606666666667	5.0804	5.20455
4 h after dark	5.052143333333333	5.02695	5.1016
8 h after dark	5.1208100000000005	5.09144	5.17888
12 h after dark	5.1956	5.088419999999999	5.40144