condition	mean	min	max
4 h after light	12.107713333333335	4.57934	19.2875
8 h after light	7.752466666666667	1.64528	14.0347
12 h after light	8.58527	4.68203	13.8795
4 h after dark	13.5278	8.5327	17.4992
8 h after dark	13.91506	7.36698	17.7937
12 h after dark	18.440933333333334	12.9586	27.6817