1991

7.6

2001

7.6

2001

7.4

2015

6.9

1961

7.6

2004

7.7

2006

7.5

1990

7.2

2006

7.3

2024

7.2

2023

0.0

1978

6.3

2020

6.8

1955

3.5

2004

7.1

2005

7.1

1979

7.7

1978

5.0

1939

7.0

2007

5.3