Question: given this, would it make more sense to change the second chart to have both axes as a fraction of GDP? When the capital development of a country becomes a by-product of the activities of a casino, the job is likely to be ill-done. — John M. Keynes
If we are discussing "ability to pay" for oil imports, surely trade surpluses, budget deficits, national debt as % of GDP etc. are much more relevant measures? "It's a mystery to me - the game commences, For the usual fee - plus expenses, Confidential information - it's in my diary..."