I do not believe there is a finite lifespan for Australian coins. They stay in circulation until they are damaged or too worn to be identified easily.
There are still many of the first issue of Australian 1966 decimal coins in circulation.
It is out of circulation if someone has it in a collection or just tucked away in his "penny jar." An older coin that is still in Very Fine or better condition has probably spent much of its life "out of circulation."
Circulation life of modern coins is 30 years with most lasting longer.
The average dollar bill has a life span of about 18-22 months. The Bureau of Engraving and Printing says the "average life" of a $1 bill in circulation is 21 months before it is replaced due to wear
The average circulation life of the US $20 Dollar note is 25 months.
The average life span of paper money in the Philippines is around 1 to 2 years. This duration can vary depending on factors such as circulation volume, handling, and overall condition of the notes.
The average dollar bill has a life span of about 18-22 months, but depends on circulation. A dollar bill will not normally survive beyond 5 years at the most.
Blood circulation takes oxygen to your system---(circulation)
People in Australia would expect to have a higher life expectancy than people in Africa. There are lots of very well developed parts of Africa where people would have a high life expectancy, but on average it would have a lower life expectancy.
The life span of U.S. currency is determined by usage. Paper currency of $20, $10, $5, $1 on average stays in circulation less than two years, while a $50 or $100 bill has an average life span of more than seven years.
Australia's Surfing Life was created in 1985.
Right to Life Australia was created in 1973.
No, they are not especially rare. There were 36.252 million issued. They have the dubious distinction of being the most hoarded Australian coin, since they were removed from circulation in 1967 after the price of silver skyrocketed. The next 50 cent coin issued in 1969, was made from cupro-nickel and had 12 sides, as have all Australian 50 cent coins since then.