condition	mean	min	max
4 h after light	12.3677	12.1583	12.5771
8 h after light	14.7332	14.1159	15.3505
12 h after light	12.5303	11.7609	13.2997
4 h after dark	20.044150000000002	18.6598	21.4285
8 h after dark	16.700400000000002	16.6498	16.751
12 h after dark	15.64235	14.879	16.4057