I want to know the answer to the following question:
Evidence has shown some lay people got to proficiency in all eight what?
All the background I'm provided with is that "The evidence of the early texts suggests that at the time of the Buddha, many male and female lay practitioners did practice meditation, some even to the point of proficiency in all eight jhānas (see the next section regarding these).[note 11]". Is that enough to answer the question?
Answer: yes