condition	mean	min	max
4 h after light	2.024105	1.76724	2.28097
8 h after light	1.611615	1.39236	1.83087
12 h after light	1.89701	1.72249	2.07153
4 h after dark	2.285265	2.13836	2.43217
8 h after dark	2.40709	2.30881	2.50537
12 h after dark	2.501385	2.46957	2.5332