condition	mean	min	max
4 h after light	17.96255	17.0791	18.846
8 h after light	15.801549999999999	15.6268	15.9763
12 h after light	11.364995	8.88949	13.8405
4 h after dark	11.87095	10.8239	12.918
8 h after dark	14.45065	13.8475	15.0538
12 h after dark	23.715600000000002	22.4272	25.004