condition	mean	min	max
0 h after light	17.652749999999997	16.5749	18.7306
4 h after light	16.8626	14.95	18.7752
8 h after light	14.2179	11.7578	16.678
4 h after dark	18.124450000000003	17.853	18.3959
8 h after dark	16.67905	15.0653	18.2928
12 h after dark	16.4821	15.2761	17.6881