condition	mean	min	max
4 h after light	17.824807	16.196024	19.45359
8 h after light	16.299846	14.854169	17.745523
12 h after light	17.827627999999997	16.511584	19.143672
4 h after dark	21.487062	16.919401	26.054723
8 h after dark	20.8940735	19.8545	21.933647
12 h after dark	16.601695	16.601695	16.601695