1994

6.7

2004

5.8

2003

6.1

1996

7.0

2003

6.4

1987

6.5

2019

6.7

1969

7.1

1984

7.5

2005

6.3

1974

8.6

2010

5.8

2002

6.6

2022

6.7

2017

6.6

2005

7.1

2000

5.9

1986

7.4

1981

7.2

2014

7.2