2000

7.2

1951

7.1

2002

6.8

1994

6.3

2006

7.0

1990

6.9

2007

5.6

2001

7.2

2011

0.0

2018

4.6

1978

3.0

2020

6.5

2005

6.2

1994

7.1

2002

7.6

1953

4.7

1998

6.8

1958

7.5

2013

6.1

1961

1.0