2001

7.6

1999

7.9

1997

6.6

2010

7.7

1966

8.0

1987

7.8

2015

8.2

2024

7.1

2003

8.0

2004

8.3

2012

7.4

2022

8.1

2005

6.8

2010

7.9

2011

8.5

1986

7.7

2011

5.9

2010

7.6

2009

6.8

2011

6.8