1974

6.8

2022

5.7

2022

6.2

1958

7.2

1998

7.2

1982

6.9

1978

7.1

2000

7.3

2007

7.4

1993

5.7

2007

4.8

1999

5.0

2015

2.7

2016

5.9

2006

7.0

2016

7.1

1991

8.0

2014

7.5

2000

6.0

2004

7.6