condition	mean	min	max
4 h after light	5.26033	4.7710300000000005	5.64774
8 h after light	5.028523333333333	4.7580800000000005	5.29021
12 h after light	5.06775	4.78254	5.35224
4 h after dark	5.12318	4.90043	5.2878
8 h after dark	5.106753333333334	4.85761	5.4057
12 h after dark	5.10254	4.84554	5.24074