2001

6.1

1984

5.4

1980

7.0

1991

6.4

2021

5.2

2021

5.6

1946

6.2

1934

6.8

1951

7.5

2021

8.7

2017

7.0

2018

7.0

1946

5.5

2013

6.5

1975

6.6

1974

7.1

2005

6.3

1992

1.0

1951

7.7

1935

7.3