2000

7.1

1999

7.3

1977

7.7

1975

7.8

2019

6.0

1999

8.4

1997

5.6

1999

0.0

2001

6.4

1975

7.8

2004

6.3

1993

6.5

1986

7.6

1992

6.9

1997

7.3

2010

5.4

2014

7.2

2006

5.8

1971

7.7

2000

7.6