1975

6.4

1989

6.8

1980

6.8

1972

6.5

1974

5.5

1998

4.8

2021

4.9

2019

7.4

2011

6.7

2021

10.0

2000

6.4

2025

7.7

1968

7.8

2017

7.6

2022

5.0

2010

6.2

2003

6.8

2008

5.3

0.0

2019

5.8