condition	mean	min	max
4 h after light	3.516966666666667	3.114025	4.2082120000000005
8 h after light	2.223297	1.48291	2.6310830000000003
12 h after light	2.0692693333333336	1.496206	3.106415
16 h after light	3.432332	2.7550470000000002	4.018529
4 h after dark	2.5825546666666668	2.2330970000000003	2.919854
8 h after dark	1.5684243333333334	1.5264870000000001	1.595209