1990

7.7

1990

7.5

1996

7.3

1997

5.4

1994

7.1

2021

6.9

1958

7.0

2005

6.5

1996

6.9

1992

5.3

1999

5.3

2004

6.9

1989

6.3

2008

4.0

1997

5.6

2007

5.8

1927

8.1

1985

8.3

1960

7.3

1989

7.8