condition	mean	min	max
4 h after light	5.519936666666666	5.44227	5.59244
8 h after light	5.43283	5.28611	5.566669999999999
12 h after light	5.4647033333333335	5.27717	5.68585
4 h after dark	5.4944299999999995	5.42404	5.58218
8 h after dark	5.471593333333333	5.36837	5.63725
12 h after dark	5.45876	5.2752	5.55115