condition	mean	min	max
4 h after light	7.49071	7.206119999999999	7.68995
8 h after light	7.00035	6.700539999999999	7.32348
12 h after light	6.030723333333333	5.9516800000000005	6.14974
4 h after dark	5.7661066666666665	5.66587	5.82724
8 h after dark	6.0398	5.93344	6.09434
12 h after dark	5.825326666666666	5.6312	6.06688