condition	mean	min	max
4 h after light	15.1799	14.2271	16.1327
8 h after light	7.43762	6.41244	8.4628
12 h after light	73.09925	71.0379	75.1606
4 h after dark	146.87366666666668	145.567	148.557
8 h after dark	114.25313333333334	99.7134	122.909
12 h after dark	48.58166666666666	41.3155	52.8519