condition	mean	min	max
4 h after light	8.657466666666666	8.61947	8.707469999999999
8 h after light	8.621229999999999	8.5642	8.69432
12 h after light	8.6495	8.578330000000001	8.705169999999999
4 h after dark	8.723506666666665	8.65643	8.796489999999999
8 h after dark	8.573066666666668	8.51923	8.62451
12 h after dark	8.378413333333333	8.13117	8.65168