condition	mean	min	max
3 h after light	8.628596666666667	7.97226	9.20081
6 h after light	14.294266666666667	11.7745	15.9501
9 h after light	18.964	17.0617	21.4811
12 h after light	16.767625	12.2225	20.5568
3 h after dark	14.0006	12.9985	14.66
6 h after dark	9.071349999999999	6.95587	11.3155
9 h after dark	6.368966666666666	5.8016	6.88694
12 h after dark	6.465339999999999	6.41969	6.51099