2007

7.5

1991

7.0

2002

7.3

1999

5.8

1978

6.9

1975

1.0

1964

7.2

1955

7.9

1987

7.2

2007

6.4

2025

6.2

1982

6.9

1969

7.6

1988

6.1

1960

0.0

1958

0.0

2019

7.0

2023

6.7

1998

7.2

1962

7.4