1999

7.1

2001

7.8

1993

6.7

2021

6.9

2002

6.3

1988

5.0

2001

6.8

1962

7.7

2003

7.2

1997

6.7

2004

6.5

2001

6.2

0.0

1963

4.9

1965

4.2

1969

3.8

2014

6.1

2019

6.6

2017

7.3

2013

6.1