condition	mean	min	max
4 h after light	5.964243333333333	5.77411	6.15517
8 h after light	6.33092	6.23206	6.45461
12 h after light	6.59031	6.403919999999999	6.69247
4 h after dark	6.4954133333333335	6.27463	6.62073
8 h after dark	6.508853333333334	6.40201	6.644710000000001
12 h after dark	6.397363333333333	5.99287	6.8374