According to Glassdoor here a computer programmer earns between $56k (USD) and $83k (USD) at the top end. I am sure where people fall in the range is dependent upon company size (larger companies can sometime have more resource to pay higher salaries), location, and experience.
Computer Programmers earn on average slightly less than Software Developers/Engineers who instead earn between $58k (USD) and $112k (USD) at the top end also according to Glassdoor here.
If you would like to find out more between what a computer programmer is vs. a software developer this is a great post: https://www.careervillage.org/questions/1929/whats-the-difference-between-a-computer-programmer-and-a-software-engineer (Greg's answer is a good overview).
Hope this helps!