condition	mean	min	max
4 h after light	13.8992	11.509471	16.288929
8 h after light	18.622425	16.288929	20.955921
12 h after light	19.5097115	19.476131	19.543292
4 h after dark	17.7568645	16.616119	18.89761
8 h after dark	16.3894735	15.819271	16.959676
12 h after dark	11.487188	11.487188	11.487188