condition	mean	min	max
4 h after light	16.219368000000003	14.44452	17.994216
8 h after light	16.697146500000002	15.233936	18.160357
12 h after light	17.610485500000003	17.226755	17.994216
4 h after dark	20.454917000000002	19.001743	21.908091
8 h after dark	20.217434	15.803763	24.631105
12 h after dark	19.558747	19.558747	19.558747