2017

6.3

1968

6.4

2000

6.0

1967

6.5

1985

7.1

2007

5.8

2009

6.6

1971

7.4

1987

6.9

2022

6.8

1964

6.7

2012

8.0

1971

7.5

2011

6.7

1969

7.1

2011

5.3

2006

5.8

1997

6.6

1985

6.2

1986

6.3