'Forbes' just released its annual list of the 400 richest people in America. Who made the list? 

'Forbes' just released its annual list of the 400 richest people in America and all the usual suspects are there.

Ramin Talaie, Paul Morigi, David Ramos, Getty Images

Bill Gates is number one for the 21st year in a row, with a net worth of $81 billion. Following Gates is Warren Buffett, who is number two for the 13th year in a row with $67 billion. Mark Zuckerberg almost cracked the top ten and takes the 11th spot now that his net worth is around $34 billion.

But it's the bottom of the list where things get interesting.  To crack the top 400 you now need to have a net worth of $1.55 billion, just being a billionaire isn't enough.  In fact, there are 113 billionaires in this country who DIDN'T make the top 400.

Some of the new people who made the list are:

Russell Weiner, the founder of Rockstar Energy Drinks, at $2.5 billion.

Travis Kalanick, the cofounder of Uber, at $3 billion.

Jan Koum, the cofounder of WhatsApp; which Facebook bought for $19 billion.  He's worth $7.6 billion.

And Elizabeth Holmes, a 30-year-old who dropped out of Stanford 10 years ago to found a company called Theranos that does cheaper, faster blood tests and she's now worth $4.5 billion.

(Forbes

(You can see the full list here.)