condition	mean	min	max
4 h after light	12.9198	10.4969	15.3427
8 h after light	9.31578	8.81013	9.82143
12 h after light	12.377875	9.08065	15.6751
4 h after dark	12.20495	11.526	12.8839
8 h after dark	20.967100000000002	20.576	21.3582
12 h after dark	18.34365	14.5874	22.0999