condition	mean	min	max
4 h after light	9.255535	8.56015	9.95092
8 h after light	8.962985	8.35634	9.56963
12 h after light	8.51121	8.3803	8.64212
4 h after dark	10.40655	10.3045	10.5086
8 h after dark	10.53889	9.98088	11.0969
12 h after dark	11.81855	11.4458	12.1913