2000

3.3

2013

6.1

1995

6.1

1997

6.6

2005

5.9

2017

6.3

1992

7.3

1993

7.5

1966

6.4

1996

6.1

2016

6.3

1938

1.0

2008

6.8

2024

0.0

2022

7.3

2019

7.1

1926

0.0

2019

6.7

1990

6.5

2008

6.9