The U.S. Weather Bureau has a station on Mauna Loa in Hawaii that has measured carbon dioxide levels since 1959. At that time, there were 317 parts per million of carbon dioxide in the atmosphere. In 2005, the figure was 367 parts per million. Find the increase in carbon dioxide levels and the percent of increase. Round to the nearest tenth of a percent. Increase carbon dioxide levels: Percent increase: parts per million