condition	mean	min	max
4 h after light	19.801650000000002	18.0841	21.5192
8 h after light	18.3998	18.1026	18.697
12 h after light	17.53225	17.2557	17.8088
4 h after dark	22.761833333333332	21.5469	25.0752
8 h after dark	25.401466666666668	22.9398	27.9625
12 h after dark	21.7383	18.3614	27.6745