1976

6.6

2021

7.8

2009

7.6

2006

7.4

2000

5.2

1994

8.7

2018

7.4

2021

7.9

2009

6.2

1990

7.4

1974

8.6

1977

8.2

1999

8.5

1979

8.3

2012

6.9

2003

8.3

1986

7.7

1989

5.4

2019

7.0

2009

6.5