condition	mean	min	max
4 h after light	16.2591	15.1807	17.3375
8 h after light	11.82485	11.173	12.4767
12 h after light	12.00975	11.9354	12.0841
4 h after dark	15.24825	14.5721	15.9244
8 h after dark	20.1578	19.3066	21.009
12 h after dark	18.5608	17.9255	19.1961