1969

7.1

1998

8.1

1998

6.1

2021

7.0

2006

7.7

2002

7.4

1984

7.2

1997

7.7

1989

6.0

2005

7.1

2011

6.9

2022

7.3

2013

5.5

2007

6.4

2004

7.4

1999

7.6

1976

7.5

1975

6.8

2022

7.1

2022

6.3