2007

6.5

2014

6.3

1999

6.0

2005

3.7

2015

7.5

2002

5.3

2024

5.0

2017

5.7

2022

5.5

1996

5.0

2010

6.4

1985

5.3

1981

5.9

2004

3.8

1980

2.8

1998

4.7

2017

6.8

2002

5.3

2019

2.8

1982

3.2