condition	mean	min	max
4 h after light	6.69998	6.31266	7.0873
8 h after light	6.028105	5.75295	6.30326
12 h after light	6.67459	6.26721	7.08197
4 h after dark	8.959733333333332	8.60019	9.14715
8 h after dark	9.62791	9.50895	9.84659
12 h after dark	8.476099999999999	7.79994	9.82092