There is no single answer for this. A single pharmaceutical patent may earn billions of dollars a year for its owner, while hundreds if not thousands of other patents are never exploited at all.
teachers earn 47,602 dollars a year
$213,600/year
a wat of money
How much does p.r.n earn a year and how often do they work
they earn about 500,000 a year
How much money does an electrician earn in a year in Australia
you can earn 90k a year
100000
a wat of money
150000
$40,000
200,000.00 a year