2000

6.8

1995

6.2

1959

7.2

1994

7.4

2000

5.5

2019

7.7

2002

5.6

2002

6.1

2000

8.2

2007

7.4

2007

6.3

1997

7.6

2004

6.7

2018

6.7

2002

5.6

1973

6.7

2000

1.5

1970

2.0

2008

6.4

2006

5.7