condition	mean	min	max
4 h after light	16.428679	13.064991	19.792367
8 h after light	18.2924475	18.160357	18.424538
12 h after light	21.5900125	20.019066	23.160959
4 h after dark	26.475579	23.181219	29.769939
8 h after dark	25.3505095	25.237637	25.463382
12 h after dark	24.533477	24.533477	24.533477