2013

8.0

2020

6.9

2022

5.5

1966

7.0

2016

5.6

2012

6.3

1990

6.1

1972

7.7

2014

6.6

1998

6.3

1987

6.2

2010

6.6

2007

6.7

1994

8.0

1938

5.0

1953

6.8

1978

7.4