1982

5.4

1997

7.5

2000

7.0

2013

7.6

2012

0.0

2022

7.2

2024

6.6

2021

8.4

2004

7.8

2015

6.9

1996

5.9

2006

7.5

0.0

1998

8.2

1984

7.7

1986

7.8

1999

7.6

2001

8.1

2007

0.0

2021

6.1