condition	mean	min	max
4 h after light	17.50625	16.6821	18.3304
8 h after light	17.43715	16.7186	18.1557
12 h after light	20.0424	19.301	20.7838
4 h after dark	28.290950000000002	26.5992	29.9827
8 h after dark	26.95775	26.4659	27.4496
12 h after dark	22.799149999999997	22.6344	22.9639