condition	mean	min	max
4 h after light	15.10874	6.88648	23.331
8 h after light	14.944099999999999	14.5061	15.3821
12 h after light	20.81805	15.4083	26.2278
4 h after dark	16.27775	12.6643	19.8912
8 h after dark	13.03895	12.8459	13.232
12 h after dark	12.114450000000001	10.6483	13.5806