condition	mean	min	max
4 h after light	12.0123	11.4325	12.5921
8 h after light	18.2378	18.1801	18.2955
12 h after light	20.3857	18.7422	22.0292
4 h after dark	22.483249999999998	22.1071	22.8594
8 h after dark	19.4625	19.4399	19.4851
12 h after dark	17.4436	16.8555	18.0317