1999

5.2

1998

6.1

2005

4.8

1998

4.0

2023

0.0

0.0

1997

7.5

2001

7.8

2002

7.4

1971

7.0

1962

6.3

1998

6.9

2002

6.2

1997

6.8

1996

7.0

2013

6.0

2021

7.1

2006

4.5

1976

8.1

1997

6.8