2011

8.1

2009

8.0

2010

7.9

2024

9.0

2000

7.6

1984

6.7

2002

6.6

2003

7.8

2012

7.7

0.0

2001

7.0

1993

6.6

1968

7.1

2000

2.0

1999

7.3

2019

6.7

2023

6.9

1996

8.0

2011

8.0

2020

6.5