condition	mean	min	max
4 h after light	20.9683785	20.822336	21.114421
8 h after light	21.169887	20.04795	22.291824
12 h after light	17.298476	14.577886	20.019066
4 h after dark	19.837512	18.916663	20.758361
8 h after dark	20.017456	17.374736	22.660176
12 h after dark	16.668364	16.668364	16.668364