1999

6.2

2008

6.6

1990

6.7

1997

7.6

1981

7.5

1951

7.0

1957

7.4

1994

8.5

1972

6.2

2023

0.0

2008

1.0

1992

6.5

2008

6.8

2014

6.6

1938

7.3

1999

5.8

2006

7.2

2024

5.4

2024

0.0

2015

0.0