condition	mean	min	max
4 h after light	25.7616	24.4605	27.0627
8 h after light	19.6719	18.2461	21.0977
12 h after light	21.75275	19.7154	23.7901
4 h after dark	28.5764	25.9952	31.1576
8 h after dark	36.1983	32.8283	39.5683
12 h after dark	33.29155	32.3406	34.2425