Is there any data source that lists average income, disposable income, or salary by age group? I would like to get something like the follows.
Country | 25-34 | 35-44 | 45-54 | 55 and over
Belgium | 30,000 | 33,000 | 46,000 | 52,000
Italy | 23,000 | 32,000 | 39,000 | 51,000
The numbers are illustration purposes' only (US$). I would like to get data that includes at least 20 or so developed countries.
Of course the different age threshold can be accepted.