1982

7.6

2010

6.1

2021

7.8

2007

9.8

1990

4.4

2020

5.5

2003

6.2

1999

7.0

1973

9.2

2002

9.1

2003

6.0

2006

6.1

2005

5.4

2009

5.6

2007

6.7

2018

6.8

1984

6.3

1990

4.7

1987

4.1

2019

5.7