condition	mean	min	max
4 h after light	17.59205	16.4381	18.746
8 h after light	14.3238	12.8712	15.7764
12 h after light	15.137	13.6272	16.6468
4 h after dark	17.901133333333334	17.1244	18.9182
8 h after dark	17.752533333333332	16.0351	18.7881
12 h after dark	16.7016	14.7861	18.498