In the united states, the average public school teacher currently earns an annual salary near $55,202. reported national average salaries for the last six decades are listed below.

national average
year teachers’ salary
1960 $4,995
1970 $8,626
1980 $15,970
1990 $31,367
2000 $41,807
2010 $55,202
determine the average change per year in teachers’ salaries for the last fifty years.

$836.78
$1,004.14
$50,207.00
$1,203.94