condition	mean	min	max
4 h after light	17.0837315	14.327963	19.8395
8 h after light	15.434875	12.548348	18.321402
12 h after light	13.860363	12.973346	14.74738
4 h after dark	17.309748	16.403523	18.215973
8 h after dark	22.773591500000002	19.327658	26.219525
12 h after dark	13.534659	13.534659	13.534659