1966

6.4

2000

7.9

2013

6.9

2021

7.8

2000

7.7

1981

7.4

1999

6.0

2019

7.9

1999

8.1

1991

4.2

2003

8.3

1998

7.5

2000

6.5

2000

8.0

2022

7.5

2014

0.0

2015

6.9

2006

0.0

2010

7.1

1985

7.8