billionaires of 2015, listed with the source of their wealth and estimated net worth according to Forbes:
10. Liliane Bettencourt, L'Oreal, $40.1 billion

9. Jim Walton, Walmart, $40.6 billion

8. Christy Walton, Walmart, $41.7 billion

7. David Koch, Koch Industries, $42.9 billion

6. Charles Koch, Koch Industries $42.9 billion

5. Larry Ellison, Oracle, $54.3 billion

4. Amancio Ortega, Zara, $64.5 billion

3. Warren Buffett, Berkshire Hathaway, $72.7 billion

2. Carlos Slim Helu, telecom, $77.1 billion

1. Bill Gates, Microsoft, $79.2 billion

This year's list is pretty similar to 2014's -- Gates and Slim Helu were ranked numbers one and two last year, as well -- but there was a bit of shuffling, including Loreal heiress Lillian Bettencourt rising one spot to reach the rarified air of the top 10.
In fact, it was a good year for women overall, Forbes reports. Though men make up an overwhelming majority of the full list, this year women accounted for 197 out of the 1,826 billionaires -- up from 172 the year before.
For the full list of 2015 billionaires, head over to Forbes.
EmoticonEmoticon