1965

7.2

2023

6.3

2002

5.5

2000

5.8

1989

6.6

2004

6.1

2018

5.9

2005

7.0

1990

7.0

1972

7.7

2019

6.5

2006

6.7

2021

7.5

1983

6.1

1997

7.1

1971

6.4

1974

6.5

1983

7.1

10.0

2025

5.8