Table 6. Shows key test in the differentiation of the virdidans streptococci. Most species can only be identified to viridans species group. The VP test aids in the identification and differentiation of the viridans streptococcal species and is a key reaction for the S. anginosus group.
Air Traffic Controller Salary. The average pay for an Air Traffic Controller is $84,815 per year. Experience has a moderate effect on income for this job. $38,929 - $148,967.
Average Annual Salary. Bureau of Labor Statistics data showed that air traffic controllers earned a mean annual wage of $114,460 in May 2011. The best-paid 10 percent of workers in the profession earned $169,160 a year or more at this time, while the worst-paid 10 percent had to make do with $61,650 a year or less. The median salary of air traffic controllers in May 2011 was $113,540 a year. By industry, air traffic controllers working for the executive branch of the federal government were the best-paid for their work in May 2011, according to the BLS. They took home a mean annual wage of $117,300 at year at this time.