condition	mean	min	max
0 h after light	18.6157	18.0885	19.1429
4 h after light	16.2087	15.4063	17.0111
8 h after light	16.8024	16.7027	16.9021
4 h after dark	19.580199999999998	19.5732	19.5872
8 h after dark	17.14945	15.6618	18.6371
12 h after dark	17.264249999999997	16.7672	17.7613