This is what the article says "Collectively, the top 400 paid an average tax rate of 22% from 2013 to 2018." "The top 25 wealthiest Americans got $401 billion

This is what the article says "Collectively, the top 400 paid an average tax rate of 22% from 2013 to 2018." "The top 25 wealthiest Americans got $401 billion richer from 2014 to 2018, but paid just $13.6 billion in federal income taxes, a “true tax rate,” as we called it, of 3.4%"