condition	mean	min	max
0 h after light	13.66205	12.7774	14.5467
4 h after light	9.354164999999998	9.04183	9.6665
8 h after light	8.31316	7.61299	9.01333
4 h after dark	10.063535	9.21387	10.9132
8 h after dark	11.934249999999999	11.3067	12.5618
12 h after dark	10.99235	10.1946	11.7901