The World's Richest People Determined by Year of Birth

TIME recently put together a list of the world’s richest people based on the year they were born. The list covers each year from 1917 to 1996, 80 years of wealth that combines for an estimated worth of $1.4 trillion USD or 2% of the U.S. GDP (gross domestic product). They used the 2017 Forbes World’s Billionaires list to start and then cross-referenced each person’s wealth against Bloomberg’s Billionaires Index and cross-checked that with Wealth-X.

Americans make up 38% of the list, Europeans 24% and Asians 20%. Nearly all the Europeans on the list inherited their wealth while 80% of the Asians were self-made. After 1957, the easiest way people made it onto the list was either being born into money or marrying into it.

Check out the 15 most current names and the full list on TIME.

1996: Alexandra Andresen
Net Worth (in billions USD): $1.2
Origin: Norway
Claim to wealth: Inherited partial ownership of investment company Ferd

1995: Katharina Andresen
Net Worth (in billions USD): $1.2
Origin: Norway
Claim to wealth: Inherited partial ownership of investment company Ferd, would be richer if not for her sister above

1994: Justin Bieber (Honorable Mention)
Net Worth (in billions USD): $0.2
Origin: Canada
Claim to wealth: Singer (Named honorable mention because neither Wealth-X, Forbes or Bloomberg recognizes a billionaire born this year)

1993: Gustav Magnar Witzoe
Net Worth (in billions USD): $1.1
Origin: Norway
Claim to wealth: Inherited half of a salmon fishing giant

1992: Frances Bean Cobain (Honorable Mention)
Net Worth (in billions USD): $0.1
Origin: America
Claim to wealth: Inherited wealth from famous dad Kurt. (Named honorable mention because neither Wealth-X, Forbes or Bloomberg recognizes a billionaire born this year)

1991: Hugh Grosvenor
Net Worth (in billions USD): $12.9
Origin: United Kingdom
Claim to wealth: Inherited his wealth and title, the Duke of Westminster

1990: Evan Spiegel
Net Worth (in billions USD): $4
Origin: America
Claim to wealth: Co-founder of Snap, co-creator of Snapchat

1989: Bobby Murphy
Net Worth (in billions USD): $4
Origin: America
Claim to wealth: Co-founder of Snap, co-creator of Snapchat

1988: Patrick Collison
Net Worth (in billions USD): $1.1
Origin: America via Ireland
Claim to wealth: Co-founder and runs Stripe, an online payment company

1987: Wang Han
Net Worth (in billions USD): $1.3
Origin: China
Claim to wealth: Inherited ownership stake in Juneyao Airlines

1986: Lukas Walton
Net Worth (in billions USD): $11.3
Origin: America
Claim to wealth: Inherited wealth from John T. Walton, heir to Walmart fortune

1985: Julio Mario Santo Domingo III
Net Worth (in billions USD): $2.4
Origin: America via Colombia
Claim to wealth: Inherited stake in beer giant SABMiller which was later acquired by Anheuser-Busch Inbev

1984: Mark Zuckerberg
Net Worth (in billions USD): $56
Origin: America
Claim to wealth: Co-founder of Facebook

1983: Nate Blecharczyk
Net Worth (in billions USD): $3.2
Origin: America
Claim to wealth: Co-founder of Airbnb

1982: Eduardo Saverin
Net Worth (in billions USD): $7.9
Origin: Brazil
Claim to wealth: Co-founder of Facebook