condition	mean	min	max
4 h after light	6.76333	6.674939999999999	6.8115
8 h after light	7.1804499999999996	6.99955	7.32521
12 h after light	7.19241	7.02602	7.33771
4 h after dark	7.458819999999999	7.2941199999999995	7.64312
8 h after dark	7.2850866666666665	7.045539999999999	7.569210000000001
12 h after dark	7.072316666666667	6.86017	7.32275