1990

6.1

1985

7.2

2016

7.8

1989

5.9

2022

5.0

2000

6.3

2018

6.0

2008

7.1

1953

7.3

1983

6.8

1997

6.2

1997

5.1

1976

7.5

1983

6.5

1995

5.6

2022

5.8

2023

7.5

2009

6.1

2023

7.0

2005

5.4