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.
Illinois state legislators, though, are making more of a living than the vast majority of state lawmakers anywhere else in the country. We pay our legislators more than any other state in the Midwest, and Illinoisâ state legislator salaries are the fifth-highest in the nation overall, says the Chicago Sun-Times. Illinois taxpayers spend more than $12 million a year on salaries for our 177 state senators and representatives. Each lawmakerâs base pay starts out at nearly $68,000 a year. The stateâs perâ¦. Illinois state legislators are paid more than any others in the Midwest was last modified: January 14th, 2015 by.