condition	mean	min	max
4 h after light	7.692724999999999	7.2898	8.09565
8 h after light	8.441135	8.24277	8.6395
12 h after light	9.07919	8.32832	9.83006
4 h after dark	11.73955	11.2646	12.2145
8 h after dark	11.039200000000001	10.5263	11.5521
12 h after dark	10.7226	10.2755	11.1697