A visualization of salary data for Computer Science related jobs. The data comes from the US Bureau of Labor Statistics.
The BLS has defined a lot of different Computer-related job titles. I've chosen to visualize only a hand full here. You can get additional information below.
I emailed the people at bls.gov to find out myself, here's what they told me:
[The limit] is due to the OES collection methodology. On our survey form, we collect wage information in wage intervals. The highest wage interval is “$90.00 or higher.” Because this interval is open-ended, we are unable to estimate a value above $90.00 per hour.