1994

7.6

1975

6.7

1987

8.4

2013

7.7

1998

7.8

1974

7.1

1986

6.2

2020

8.4

2004

7.4

2003

7.2

2009

7.1

1990

6.8

1969

8.0

1999

7.5

2009

8.0

2023

7.0

2011

6.9

2010

6.9

2011

7.2

2010

7.2