1990

7.7

2002

7.2

1997

7.4

1972

8.7

1991

8.3

1999

7.5

1984

7.3

2006

5.5

2004

7.3

2002

6.7

1991

6.7

1948

7.9

2005

4.5

2014

5.1

2007

6.7

2007

7.2

2024

7.2

1999

7.6

2017

5.8

2022

5.3