condition	mean	min	max
4 h after light	7.7006499999999996	7.64883	7.7746699999999995
8 h after light	7.333776666666667	7.2592	7.4622
12 h after light	7.583426666666666	7.397539999999999	7.71135
4 h after dark	7.84635	7.8239	7.86095
8 h after dark	7.944383333333334	7.86694	8.00238
12 h after dark	7.957916666666667	7.83965	8.03942