1967

7.4

1991

7.8

2001

5.8

2002

6.7

1976

7.1

1997

7.5

1992

0.0

2014

8.5

1989

8.0

1995

7.1

1986

8.0

2002

7.4

1995

8.2

2001

6.6

2003

7.2

1997

8.4

2000

7.9

2018

6.3

1986

7.9

1966

7.4