condition	mean	min	max
4 h after light	5.88464	5.70282	6.09342
8 h after light	6.179356666666667	6.0058300000000004	6.50154
12 h after light	5.922596666666666	5.69632	6.1862
4 h after dark	5.89079	5.59505	6.17772
8 h after dark	5.795623333333333	5.71261	5.87364
12 h after dark	5.79798	5.56	6.14689