condition	mean	min	max
4 h after light	20.82555	20.6236	21.0275
8 h after light	13.25895	12.6735	13.8444
12 h after light	13.297699999999999	12.8464	13.749
4 h after dark	19.1798	18.7465	19.6131
8 h after dark	20.8542	20.4603	21.2481
12 h after dark	21.4592	21.0678	21.8506