condition	mean	min	max
4 h after light	4.8119	4.60572	5.01808
8 h after light	4.49721	4.31169	4.68273
12 h after light	4.27825	4.26718	4.28932
4 h after dark	5.662555	5.46719	5.85792
8 h after dark	4.441385	4.22722	4.65555
12 h after dark	5.87697	5.12608	6.62786