condition	mean	min	max
4 h after light	8.68087	8.64043	8.72131
8 h after light	9.053435	8.56954	9.53733
12 h after light	11.324725	9.97215	12.6773
4 h after dark	14.068	12.4171	15.7189
8 h after dark	13.052499999999998	12.2877	13.8173
12 h after dark	12.78565	12.0953	13.476