condition	mean	min	max
4 h after light	7.550143333333333	7.52217	7.5803899999999995
8 h after light	6.930483333333333	6.78597	7.14429
12 h after light	6.9198200000000005	6.83793	7.04745
4 h after dark	7.492086666666666	7.3465	7.711469999999999
8 h after dark	8.02307	7.77699	8.2467
12 h after dark	8.485996666666667	8.345089999999999	8.70796