condition	mean	min	max
4 h after light	23.217559	17.24701	29.188108
8 h after light	19.629276	15.294139	23.964413
12 h after light	13.3099865	9.619575	17.000398
4 h after dark	13.697549500000001	10.141265	17.253834
8 h after dark	15.654461999999999	12.481191	18.827733
12 h after dark	15.835352	15.835352	15.835352