1990

7.5

1993

7.8

1996

7.6

2005

7.1

2019

7.9

1977

7.0

2022

6.6

2003

7.4

2006

6.0

2006

9.8

2002

7.6

1961

7.2

1988

6.7

2003

5.9

2017

6.4

1986

6.8

2007

7.6

2004

5.9

1996

6.0

2021

7.4