condition	mean	min	max
4 h after light	17.1966	15.5594	18.8338
8 h after light	11.4621	10.9052	12.019
12 h after light	13.538150000000002	12.5279	14.5484
4 h after dark	14.1837	12.9618	15.8164
8 h after dark	16.112033333333336	13.0142	18.9276
12 h after dark	15.829366666666667	12.5793	18.0582