Are these numbers so low because of rent control? I lived in a 300 square foot studio last year that cost me $1400 a month. That exact same studio now costs $28

Are these numbers so low because of rent control? I lived in a 300 square foot studio last year that cost me $1400 a month. That exact same studio now costs $2800. I've seen similar increases from craigslist posts throughout the city, compared to what I was looking at last year. What I wouldn't give for it to only have increased 15%.