condition	mean	min	max
4 h after light	5.283415	4.82459	5.74224
8 h after light	6.0169	5.90719	6.12661
12 h after light	7.64391	7.00834	8.27948
4 h after dark	7.922065	7.45596	8.38817
8 h after dark	6.17736	5.96012	6.3946
12 h after dark	5.73653	5.60043	5.87263