condition	mean	min	max
4 h after light	51.20005	45.8976	56.5025
8 h after light	40.24065	39.7002	40.7811
12 h after light	55.393	54.9487	55.8373
4 h after dark	60.2067	58.8855	61.5279
8 h after dark	60.6209	60.4633	60.7785
12 h after dark	63.68295	63.1575	64.2084