1954

7.2

2018

5.7

1995

6.5

2005

7.0

2001

7.9

1998

7.1

2006

6.6

1997

6.9

1990

7.4

1974

7.5

1997

7.5

2014

6.2

1990

6.1

2025

10.0

2009

5.3

1955

7.3

2002

7.3

1995

6.4

1998

6.8

1980

7.9