That stopped when the priests realized that most of the people couldn't actually use a quipu in that manner: the converts had to return to the quipu specialists to obtain a quipu and a list of sins that corresponded to the knots. After that, the Spanish worked to suppress the use of the quipu.
Average sonographer salary. An average hourly rate (wage) and the annual salary for sonographers in the United States is around $31.90 per hour and $66,360 per year.
Salary Range and Outlook. Diagnostic medical sonographers earn a median (half earn more and half earn less) salary of $63,330 per year, according to the Bureau of Labor Statistics. The outlook for employment as a diagnostic medical sonographer is very good, according to the Bureau of Labor Statistics (BLS). It predicts that employment will grow 26% from 2014 to 2024, much faster than the average for all occupations.