1959

6.4

2005

7.3

1951

7.5

2009

6.6

1991

7.5

1989

7.4

1998

6.8

2017

7.2

2016

7.1

1961

7.6

1997

6.8

1984

8.0

2019

7.2

1987

6.3

2023

7.7

2015

5.3

2019

8.0

1971

8.2

1968

7.1

1983

6.3