1993

7.1

1989

7.8

2014

7.4

2019

6.0

1975

5.0

1982

5.0

1988

5.8

2014

7.5

2017

0.0

2022

5.0

1989

6.6

2014

7.1

1981

6.8

1972

7.9

1994

7.6

2008

5.7

2005

7.5

1998

7.1

2001

8.0

2001

7.4