condition	mean	min	max
4 h after light	9.567293333333334	9.53008	9.60834
8 h after light	9.45873	9.355089999999999	9.56787
12 h after light	9.516186666666666	9.39762	9.59711
4 h after dark	9.33422	9.02281	9.54172
8 h after dark	9.23784	9.08352	9.36235
12 h after dark	9.367226666666665	9.202639999999999	9.49593