condition	mean	min	max
4 h after light	3.01771	2.87622	3.1592
8 h after light	4.96096	4.92971	4.99221
12 h after light	15.879349999999999	13.8786	17.8801
4 h after dark	12.524666666666667	11.4151	13.7025
8 h after dark	10.817823333333333	8.26117	13.8271
12 h after dark	6.38075	5.27864	7.70268