condition	mean	min	max
4 h after light	1.668355	0.71065	2.62606
8 h after light	1.46966	1.29524	1.64408
12 h after light	1.80661	1.7234	1.88982
4 h after dark	1.348054	0.837838	1.85827
8 h after dark	1.67319	1.50032	1.84606
12 h after dark	2.0398	1.93546	2.14414