condition	mean	min	max
4 h after light	7.81041	7.713769999999999	7.94336
8 h after light	8.085253333333334	7.89623	8.31635
12 h after light	8.089083333333333	7.88652	8.26666
4 h after dark	8.043473333333333	7.87635	8.35666
8 h after dark	7.973893333333333	7.77685	8.360389999999999
12 h after dark	7.8616399999999995	7.769419999999999	7.9222