1979

7.4

1998

7.4

2024

8.5

2002

7.5

1999

7.0

1990

8.0

1990

7.1

1987

7.8

2013

7.4

2004

7.9

2018

8.4

1979

6.8

1985

7.6

2002

7.1

2015

7.7

2003

7.7

2000

8.2

2004

8.6

1980

7.3

1962

7.8