1995

7.9

1989

8.3

2006

7.5

1999

7.4

2005

6.7

1979

7.7

1987

7.6

1990

8.5

1980

7.1

2007

7.9

2024

6.1

2025

7.0

2006

7.9

2003

7.2

2001

7.3

1999

6.8

2014

6.2

2017

6.0

1997

7.0

1984

8.4