2017

6.4

1999

8.4

2001

8.5

1960

7.5

1998

7.1

1985

6.9

2011

5.2

1968

7.8

1990

6.8

2023

8.1

2000

7.6

2005

6.5

1997

8.4

1971

7.8

1986

6.7

1972

7.4

2010

6.2

1994

8.5

1989

7.5

2004

6.7