condition	mean	min	max
4 h after light	14.0748	13.1327	15.0169
8 h after light	14.51485	13.7476	15.2821
12 h after light	14.26355	13.9196	14.6075
4 h after dark	20.193849999999998	17.5674	22.8203
8 h after dark	19.87975	19.6088	20.1507
12 h after dark	18.1637	18.1007	18.2267