condition	mean	min	max
4 h after light	21.003387	19.730592	22.276182
8 h after light	17.7433775	16.881069	18.605686
12 h after light	25.087550999999998	21.770144	28.404958
4 h after dark	17.9652735	16.417913	19.512634
8 h after dark	29.9278905	27.819477	32.036304
12 h after dark	30.10224	30.10224	30.10224