2012

4.4

1961

6.9

2012

5.2

2007

4.6

2003

6.0

1990

5.8

1969

6.7

2008

6.1

1988

5.8

1975

8.4

1972

7.4

1998

6.4

1966

6.6

2009

6.5

2009

6.1

1994

6.0

2022

5.6

1999

5.3

2006

5.0

2023

6.6