2004

7.8

1999

7.4

1977

8.1

1999

7.7

1997

7.1

2002

8.2

1962

7.2

2006

7.9

1990

7.6

1961

7.0

2017

6.6

2002

7.4

2015

8.3

1997

6.9

2019

8.5

2004

8.5

2000

6.2

2019

6.0

2019

8.3

2000

8.2