2003

7.4

1991

7.8

2001

5.8

2002

6.7

2002

7.1

2006

7.5

1976

8.0

2000

7.0

2015

9.0

2020

3.5

2019

3.8

2012

0.0

1999

0.0

1995

0.0

2019

0.0

1999

7.8

1984

7.1

1981

8.0

2003

8.1

2023

0.0