2000

7.2

2002

7.5

2013

6.1

1989

5.1

1953

6.6

1966

7.3

1965

7.7

2006

5.5

1975

6.0

1969

7.9

1987

7.6

2016

6.5

1952

8.3

1948

7.6

1949

7.7

1994

8.0

2025

5.8

1931

6.9

2003

8.8

1968

6.9