condition	mean	min	max
3 h after light	17.737166666666667	16.0055	19.7828
6 h after light	7.807106666666667	6.58789	8.64899
9 h after light	5.8921	5.40095	6.82856
12 h after light	8.64248	6.5457	9.94955
3 h after dark	5.1168000000000005	2.44937	7.38863
6 h after dark	6.242816666666666	4.85652	8.90978
9 h after dark	3.75153	2.93402	4.2339
12 h after dark	3.4333233333333335	2.40536	4.97084