1963

7.9

1999

7.0

1959

8.4

2000

6.6

2012

6.8

1992

6.8

2005

8.3

2021

8.8

2010

6.8

2009

7.5

2019

8.2

2010

7.2

1964

7.4

2016

7.4

2011

6.3

1973

8.1

1979

7.5

2015

7.9

2002

8.3

1960

7.1