1990

6.1

1995

7.3

1967

6.5

2000

6.6

1986

6.7

2005

7.4

2018

0.0

1985

6.7

2000

6.2

2005

6.2

2003

7.2

1991

7.1

2020

3.8

1925

5.2

1962

7.9

2016

5.0

1999

7.3

2016

4.9

2023

7.1

2000

5.8