condition	mean	min	max
4 h after light	17.6116	16.825	18.3982
8 h after light	22.8868	22.8338	22.9398
12 h after light	28.23785	27.589	28.8867
4 h after dark	38.3217	37.5376	39.1058
8 h after dark	30.41995	29.9557	30.8842
12 h after dark	24.52675	24.3602	24.6933