1987

6.7

1973

7.5

1996

7.2

2000

7.1

2014

4.9

2004

6.9

1995

6.5

2005

7.1

1999

6.7

1994

8.3

2002

7.3

2003

7.7

1971

6.4

1996

5.6

1960

7.7

1982

6.7

2021

6.1

2022

6.6

1972

6.7

1970

3.2