2011

6.5

1987

6.3

2014

7.6

1990

6.1

1968

6.8

2008

8.7

1985

5.5

2002

5.0

2009

6.4

2007

7.5

1986

6.6

2021

7.5

2004

7.2

2010

6.9

2012

6.3

2006

7.0

1978

6.0

2003

5.7

2022

5.6

2008

7.2