2006

4.1

1987

7.1

2017

5.9

2024

5.0

1989

7.8

1990

7.5

2004

7.3

1999

7.6

2007

6.3

1975

5.5

2014

5.6

2018

6.9

2002

4.6

2010

6.4

2010

7.8

2005

5.8

2017

2.7

1982

6.1

1962

6.9

2023

5.7