2011

7.5

2007

7.4

1999

7.0

1998

6.9

2009

8.0

1992

7.2

2008

7.6

2016

6.9

2011

8.1

2009

8.1

1982

6.4

1990

8.0

1990

8.3

2024

6.5

2019

8.2

2008

7.8

2003

7.7

2003

7.6

2009

7.6

1964

7.9