2021

7.4

2011

5.8

1985

6.4

1989

6.2

1964

7.4

2009

7.1

1994

7.6

2010

6.0

1997

6.1

2021

9.2

1984

8.0

1980

7.2

2013

6.9

1985

6.1

1980

6.1

2002

5.8

1969

7.1

2012

5.3

2009

6.2

1994

8.9