Ultimately andy, my assertion is that the Rothschilds are the most powerful banking family in the world. The fact that someone can not find a true gauge of their wealth speaks volumes. It's not a conspiracy, they themselves say who and what they are, and exactly what their intentions are/were. To control the currency of nations so as to control those nations. Exact figures, tax statements, etc, mean nothing at that level of .... not wealth,
ownership. I honestly don't think they measure their wealth or influence in terms of "currency". When you control the money flow of everyone else, what is the point in having cash anyway? They take what they want. They just absorb things, nations, businesses, banking institutions. It is their model of usury, their redefinition of something started with the de Medici's, that is in play today. You can find their name all over the biggest institutions in the world and that has been the case for 200 years. You can see some of their recent former employees at the heads of finance, politics, and military.
All dynasties come to an end. history shows us that and it's a fact that the Rothschilds are well aware of. They've apparently engineered their own recession into the background, they're now a modestly wealthy, multigenerational financial force that simply advises people on what to do with the money.

The motto of the Fed banks and the engineers of our recessions and financial collapse might as well be the same as MA Rothschild. It's no coincidence.
'As of March 31, 2012, BlackRock's assets under management total US$3.684 trillion across equity, fixed income, cash management, alternative investment, real estate and advisory strategies. Through BlackRock Solutions® — the natural evolution of our long-standing investment in developing sophisticated and highly integrated systems — we offer risk management, strategic advisory and enterprise investment system services to a broad base of clients with portfolios totaling approximately US$10 trillion.'
It took me all of 10 seconds.