condition	mean	min	max
4 h after light	2.19397	1.45667	2.93127
8 h after light	12.973600000000001	12.5242	13.423
12 h after light	30.62065	28.6297	32.6116
4 h after dark	39.99863333333333	39.0935	41.4419
8 h after dark	9.104306666666666	7.97851	9.9052
12 h after dark	4.18533	3.18628	5.16413