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 Outlook. According to the BLS, diagnostic medical sonographers earned a median salary of $66,410 in 2013. The best-paid 10 percent earned more than $92,070, while the lowest-paid earned less than $45,840.ccording to the BLS, diagnostic medical sonographers earned a median salary of $66,410 in 2013.