The world’s 13 biggest philanthropists:
1) Bill Gates
Who he is: Co-founder, Microsoft
Generosity Index: 32%
Donated over lifetime: $27 billion
Estimated current net worth: $84.2 billion
2) Warren Buffett
Who he is: Chairman and CEO, Berkshire Hathaway
Generosity Index: 35%
Donated over lifetime: $21.5 billion
Estimated current net worth: $61 billion
3) George Soros
Who he is: Founder, Soros Fund Management
Generosity Index: 33%
Donated over lifetime: $8 billion
Estimated current net worth: $24.4 billion
4) Azim Premji
Who he is: Chairman, Wipro
Generosity Index: 50%
Donated over lifetime: $8 billion
Estimated current net worth: $15.9 billion
5) Charles Francis Feeney
Who he is: Co-founder, Duty Free Shoppers Group
Generosity Index: 420,000%
Donated over lifetime: $6.3 billion
Estimated current net worth: $1.5 million
6) Sulaiman bin Abdul Aziz Al Rajhi
Who he is: Co-founder, Al Rajhi Bank
Generosity Index: 966%
Donated over lifetime: $5.7 billion
Estimated current net worth: $590 million
7) Gordon Moore
Who he is: Co-founder, Intel
Generosity Index: 77%
Donated over lifetime: $5 billion
Estimated current net worth: $6.5 billion
8) Carlos Slim Helú
Who he is: Chairman, Grupo Carso
Generosity Index: 15%
Donated over lifetime: $4 billion
Estimated current net worth: $27.3 billion
9) Eli Broad
Who he is: Co-founder, KB Home
Generosity Index: 45%
Donated over lifetime: $3.3 billion
Estimated current net worth: $7.3 billion
10) George Kaiser
Who he is: Chairman, BOK Financial Corporation
Generosity Index: 35%
Donated over lifetime: $3.3 billion
Estimated current net worth: $9.3 billion
11) Michael Bloomberg
Who he is: Founder and CEO, Bloomberg
Generosity Index: 8%
Donated over lifetime: $3 billion
Estimated current net worth: $37.7 billion
12) Paul Allen
Who he is: Co-founder, Microsoft
Generosity Index: 12%
Donated over lifetime: $2 billion
Estimated current net worth: $17.3 billion
13) Mark Elliot Zuckerberg
Who he is: Founder and CEO, Facebook
Generosity Index: 4%
Donated over lifetime: $1.6 billion
Estimated current net worth: $40.7 billion