1954

7.9

2008

8.0

1964

7.4

1989

5.7

1975

4.5

1928

6.0

2009

7.3

6.7

2021

9.2

2003

6.5

1993

6.9

2006

5.2

1996

6.3

2010

6.6

2003

7.1

1974

6.4

1929

7.4

1965

7.2

1970

7.7