condition	mean	min	max
4 h after light	4.077443333333333	4.06449	4.10075
8 h after light	4.0758833333333335	4.06499	4.097519999999999
12 h after light	4.10961	4.06536	4.18596
4 h after dark	4.09177	4.05004	4.13919
8 h after dark	4.052393333333334	4.00612	4.0911
12 h after dark	4.104023333333333	3.94145	4.2967699999999995