Please decide whether each of the following statements about the U.S. unemployment rate are true or false.
1. Unemployment generally remains stable and static overtime
2. Changes in technology and new workers joining the workforce have contributed to the overall upward in the unemployment rate
3. The behavior of the unemployment rate is related to the business cycle
4. It’s very likely that an unemployment rate of 0% will never be observed
5. The end of the 20th century saw some of the highest rates of unemployment in the US history