"amount of currency" is a correct and usable phrase in written English.
You can use it to refer to any type of money, such as dollars, euros, or yen. For example, "The customer paid an amount of currency equivalent to 500 euros."
The amount of currency in circulation is not changing.
"For the amount of currency out there, we have very little counterfeiting," he told Reuters.
The amount of currency available would depend almost entirely on the strength of the Scottish balance of payments position.
The panics caused a dramatic rise in the amount of currency people wished to hold relative to their bank deposits.
EVERY year the world's central banks withdraw and replace a huge amount of currency deemed unfit for further circulation.
At the same time, said Laura Nichols, the spokeswoman for the House minority leader, Representative Richard A. Gephardt, "the president expended a fair amount of currency defending Ashcroft".
"Traveling with large amounts of currency is not illegal," the T.S.A. added in an internal directive on Oct. 29.
Wen Jiabao, the prime minister, acknowledged on November 19th that vast amounts of currency were flowing out of China through illegal channels, about half from Shenzhen.
The accompanying tables show the growth in outstanding amounts of currency since euro coins and bills were introduced at the beginning of 2002.
Carrying (declared) cash is generally legal, and many travellers (including some Gulliver readers, I'm sure) carry large amounts of currency when they go abroad.
In certain cases, Daimler made bribes from "cash desks," allowing employees to take out large amounts of currency to make payments to foreign officials.
