condition	mean	min	max
4 h after light	13.8366385	13.152098	14.521179
8 h after light	15.4238405	13.152098	17.695583
12 h after light	12.763197	12.374296	13.152098
4 h after dark	13.009148	11.894221	14.124075
8 h after dark	12.7382365	10.936268	14.540205
12 h after dark	11.241087	11.241087	11.241087