As altitude increases, the available amount of oxygen to sustain mental and physical alertness decreases with the overall air pressure, though the relative percentage of oxygen in air, at about 21%, remains practically unchanged up to 21,000 metres (70,000 ft).
  State legislators in Texas (both representatives and senators) make a salary of $7,200 per year.
223 State Farm Insurance Customer Service Representative Salaries. State Farm Insurance Customer Service Representatives earn $28,000 annually, or $13 per hour, which is equal to the national average for all Customer Service Representatives at $28,000 annually and 74% lower than the national salary average for âall working Americans.