1999

6.8

2007

9.9

1997

6.1

2020

5.8

2012

7.5

2015

7.3

2018

7.0

2019

5.8

1978

6.7

2022

7.6

2002

4.7

2003

7.2

1970

7.0

1992

5.6

1965

6.0

2019

6.3

2018

7.1

1969

5.1

1995

6.7

2009

7.6