I wonder if there are statistics on how much of that number is forks (which people use like clones) and how much of it totally abandoned or README only or empty

I wonder if there are statistics on how much of that number is forks (which people use like clones) and how much of it totally abandoned or README only or empty repositories. And also which 3k repos are those is veeery important. Just a handful high-profile repos migrating can cause a much bigger wave.