The total circulation of Brazilian newspapers has expanded by 1m in the past ten years, to 8.2m.

ECONOMIST: Newspapers

More than 30 billion rupee notes are in circulation, a total growing by 11% a year.

ECONOMIST: Filthy lucre

One says that, over the long run, the price of gold approximates the total amount of money in circulation divided by the size of the gold stock.

NEWYORKER: Mastering the Machine

In 2011, the percentage of Russians using bank cards rose by 11% year-on-year to 75%, and the total number of credit cards in circulation in the country reached 11 million according to Euromonitor.

FORBES: Discover Enters Russia En Route To $39

This was inevitable: airlines have been issuing so many miles (for spending on the ground as well as in the air) that the total stock is worth more than all the dollar notes and coins in circulation.

ECONOMIST: The devaluation of everything