What are the numbers? When the numbers were released for SF, it was a number around ~6000. While SF rent laws cause over 30'000 units to stay off the market b

What are the numbers? When the numbers were released for SF, it was a number around ~6000. While SF rent laws cause over 30'000 units to stay off the market because landlords don't want to deal with the risk and hassle. And even more potential units are 'off the market' because of building restrictions.