Most countries, through their Central Bank or Monetary Authority, Statistical Bureaus or Payments Associations publish a range of payments data.
One of the more widely available data sets is Currency in Circulation (the country’s monetary base) and a key component of all Monetary Aggregates.
Perhaps one of the blond group‘s most often referenced charts is our plotting of changes in cash in circulation (on issue) in a range of selected currencies. We calculate and plot the monthly percentage change in currency in circulation from a fixed start point (in this example where the base in January 2010 is 100%. Over time you can see how the values have increased (or in a few cases declined. For example U.S. Doillars in circulation have grown from 864 billion in January 2010 to 1720 billion in January 2020 , so on the chart from 100% to nearly 200%, a doubling in 10 years.
The Reserve Bank of Australia publish a wide range of currency and other payments statistics.
Starting in September 2016,the Reserve Bank has progressively introduced a new series of Next Generation Banknotes. Retaining the size, colours and images of the Queen and famous Australians, the banknotes feature innovative new security features, include a top to bottom clear window. Unlike in some countries where there is an active old note withdrawal programme, or where notes cease to become legal tender, both old and new NGB banknotes can co-circulate. The chart below shows the saturation level (number of new NGB notes as a percentage of all notes of a particular denomination in circulation) for each issued denomination. As some notes are ‘lost’ to active circulation the ‘on the street’ circulation of new design notes is typically higher.