1993

7.1

2019

8.4

1989

7.6

2003

7.8

2011

6.1

2005

7.6

1962

7.3

2022

8.2

1999

7.7

2008

7.4

1969

7.3

1987

7.4

2007

7.9

1990

7.3

1978

6.8

2001

6.5

2010

8.5

2008

7.6

1982

7.1

2005

6.3