1987

7.8

1999

6.9

1984

7.5

2007

6.9

2014

4.7

2007

5.6

2006

5.8

1989

6.6

1959

6.2

1983

9.6

1998

5.5

2019

5.4

2017

4.8

1994

4.9

2002

4.8

1999

6.0

2025

5.0

1966

6.3

1965

7.1

1995

6.5