1974

8.1

2000

6.4

2022

6.3

1999

7.0

1993

6.7

2001

6.0

2002

6.3

2001

6.8

1984

7.5

1995

6.9

2024

5.0

2003

7.4

2002

6.5

2000

7.1

2007

4.5

1988

5.7

1996

6.2

2015

5.8

2017

6.0

2017

6.3