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.
The 25th percentile of sonographers earned up to $25.88 per hour, or $53,830 per year, and the 75th percentile earned over $36.57 per hour, or $76,060 per year. American Society of Radiologic Technologists