condition	mean	min	max
4 h after light	16.74945	15.6339	17.865
8 h after light	14.309149999999999	12.4639	16.1544
12 h after light	19.12135	19.028	19.2147
4 h after dark	20.8553	20.5727	21.1379
8 h after dark	15.9654	13.1111	18.8197
12 h after dark	15.93825	14.619	17.2575