condition	mean	min	max
0 h after light	15.534749999999999	15.3936	15.6759
4 h after light	10.597515	9.65823	11.5368
8 h after light	10.47549	9.94328	11.0077
4 h after dark	14.5806	12.4185	16.7427
8 h after dark	12.70655	12.3824	13.0307
12 h after dark	14.59095	13.1738	16.0081