condition	mean	min	max
0 h after light	8.14659	8.09688	8.1963
4 h after light	8.68023	8.0811	9.27936
8 h after light	6.20803	4.98283	7.43323
4 h after dark	17.3617	16.3877	18.3357
8 h after dark	15.928149999999999	15.2632	16.5931
12 h after dark	9.025295	6.70739	11.3432