condition	mean	min	max
4 h after light	7.95433	7.09492	8.81374
8 h after light	6.095565	5.99506	6.19607
12 h after light	6.38171	6.18243	6.58099
4 h after dark	8.589896666666666	7.7298	9.13398
8 h after dark	8.245563333333333	8.05489	8.44999
12 h after dark	8.236396666666668	7.86892	8.71148