1992

7.9

1994

7.2

2022

8.5

1964

7.9

1994

7.6

2008

7.5

2021

8.1

1996

7.8

1987

7.0

2020

8.3

2022

8.5

2013

7.8

2021

8.6

1998

8.2

2007

7.9

2015

8.1

1990

6.9

1989

6.7

2010

7.5

2008

7.7