condition	mean	min	max
4 h after light	21.94905	21.1969	22.7012
8 h after light	17.542499999999997	17.0022	18.0828
12 h after light	12.34835	12.0725	12.6242
4 h after dark	15.624166666666667	14.6036	16.3683
8 h after dark	11.820500000000001	11.7431	11.9686
12 h after dark	15.180333333333333	9.9675	19.8193