condition	mean	min	max
0 h after light	19.95025	18.0603	21.8402
4 h after light	13.779499999999999	13.1549	14.4041
8 h after light	13.17635	12.2882	14.0645
4 h after dark	15.008700000000001	13.3379	16.6795
8 h after dark	15.48075	13.7663	17.1952
12 h after dark	17.2018	15.0514	19.3522