condition	mean	min	max
4 h after light	11.94015	9.9901	13.8902
8 h after light	14.23655	13.5437	14.9294
12 h after light	15.14995	14.9523	15.3476
4 h after dark	16.011499999999998	15.3372	17.2072
8 h after dark	15.179	13.5803	16.9863
12 h after dark	12.616766666666667	11.2979	13.3136