The Color-Sensitive Cones. In 1965 came experimental confirmation of a long expected result - there are three types of color-sensitive cones in the retina of the human eye, corresponding roughly to red, green, and blue sensitive detectors.
Most PGA Tour caddies make between $1000 and $1500 per week, but they also make a percentage of what the player wins in the tournaments. This usually equates to 5 percent of any finish outside the top 10. Players breaking into the top 10, but not winning, will share 7 percent of their prize with their caddies.
For example the median expected annual pay for a typical CAD Drafter I in the United States is $47,486, so 50% of the people who perform the job of CAD Drafter I in the United States are expected to make less than $47,486. Source: HR Reported data as of March 31, 2017. Salary. Salary + Bonus. Benefits.