Wages differ across occupations but also within occupations
It’s well known that some occupations typically pay more than others. For example, the median annual wage for information security analysts was $88,890 in May 2014, 2.5 times the $34,980 median annual wage for fitness trainers and aerobics instructors. Within every occupation there is also a range of wages, and those ranges often overlap. Fitness trainers and aerobics instructors in the highest paid 10 percent (the 90th wage percentile) earned $67,560 per year, considerably more than the $50,300 annual wage of information security analysts in the lowest paid 10 percent (the 10th wage percentile).
Another way to look at wage percentiles for an occupation is to compare them to percentiles for all occupations combined. Among pharmacists, for example, the 10th wage percentile was $89,320 in May 2014, nearly as much as the 90th wage percentile for all occupations ($90,060). The 90th wage percentiles for fast food and counter workers ($23,990) and waiters and waitresses ($31,930) both were below the median, or 50th wage percentile, for all occupations ($35,540).