2002

7.6

2013

7.9

1999

6.8

1997

7.5

1964

7.2

2001

0.0

2017

7.7

2012

0.0

2018

0.0

1966

6.6

2017

6.1

2019

8.0

1961

7.7

1985

7.1

1967

7.0

2018

5.6

1984

6.6

1979

5.0

2005

6.2

1982

7.5