1966

7.6

2007

7.4

2019

6.5

2015

7.9

2023

6.4

1956

7.1

2002

5.4

1998

7.0

2009

6.7

2017

6.8

2019

5.0

1982

5.6

2000

5.0

2022

5.7

1920

6.7

1961

4.5

2009

7.6