condition	mean	min	max
4 h after light	13.8584	13.0822	14.6346
8 h after light	12.23755	11.0158	13.4593
12 h after light	17.8486	17.8241	17.8731
4 h after dark	18.093049999999998	17.4464	18.7397
8 h after dark	19.9506	17.5583	22.3429
12 h after dark	19.75015	18.5648	20.9355