condition	mean	min	max
4 h after light	12.65889	8.45927	15.3821
8 h after light	9.511546666666668	3.77874	14.8252
12 h after light	10.935356666666667	7.17097	15.4673
4 h after dark	16.075499999999998	12.8151	20.8473
8 h after dark	17.0729	10.4464	20.8194
12 h after dark	19.273833333333332	18.1211	20.2241