1955

7.5

1999

7.4

2015

7.3

2023

0.0

2013

6.7

1989

8.3

2021

6.9

1999

6.8

2001

7.5

1977

7.7

2000

7.1

1968

7.1

1959

7.9

2001

6.9

1979

7.7

1925

8.0

2002

7.2

1981

3.0

1931

8.3

1989

7.7