The minimum net worth is now $2.2 billion, up from $2 billion a year ago.
53 of the top 100 added to their fortunes, while 27 got poorer.
12 newcomers joined the ranks;
the top 5 billionaires collectively added $36.9 billion to their fortunes
over the past year - accounting for two-thirds of all gains.
51 of the top 100 are USA based and are worth $600b - 2/3 of total wealth
- Bill Gates - richest $100b - only 15pc of his wealth in Microsoft
- Jeff Bezos - Amazon $60b
- Larry Ellison - Oracle
- Mark Zuckerberg - Facebook
- many joined the list from Facebook acquisitions - eg Whatsapp
Next is China - 19 billionaires worth 128b - Jack Ma of Ali Baba worth $26b
5 women have made it in the top 100
Richest $6b - the others $2b
See the full list here.