1996

6.5

1971

6.6

1971

4.5

2004

6.6

2005

6.7

1980

4.9

1973

6.1

1988

5.1

1986

5.0

1964

6.5

2000

5.5

2005

4.5

1986

6.7

2016

5.4

2006

5.8

1986

5.7

2009

4.8

1981

6.3

2009

6.9

2002

7.0