condition	mean	min	max
4 h after light	16.51215	15.5377	17.4866
8 h after light	17.72035	16.6915	18.7492
12 h after light	14.4865	13.6838	15.2892
4 h after dark	16.28085	16.1806	16.3811
8 h after dark	16.6527	15.2119	18.0935
12 h after dark	17.5807	16.623	18.5384