condition	mean	min	max
4 h after light	15.9237	15.7149	16.1325
8 h after light	15.44195	15.1371	15.7468
12 h after light	16.1617	15.0586	17.2648
4 h after dark	20.07615	19.9248	20.2275
8 h after dark	22.394350000000003	21.7417	23.047
12 h after dark	23.18825	22.441	23.9355