condition	mean	min	max
4 h after light	2.280595	1.93406	2.62713
8 h after light	0.888613	0.781639	0.995587
12 h after light	1.645005	1.61287	1.67714
4 h after dark	3.30035	2.86265	3.73805
8 h after dark	3.391845	3.34942	3.43427
12 h after dark	2.81548	2.49509	3.13587