1998

6.7

2005

6.0

1993

6.2

1986

7.6

2011

0.0

2018

6.8

2019

5.9

1980

6.4

2000

5.0

2007

7.3

2023

0.0

1967

6.0

1997

7.6

2003

6.1

2005

6.7

2007

7.4

1969

6.3

1990

6.0

1998

7.2

1982

7.2