1989

6.1

2014

7.8

1975

4.5

1988

5.5

1990

4.4

2019

10.0

2020

7.2

2013

6.1

2009

6.5

2021

6.2

1967

6.5

1988

5.8

2002

6.5

6.4

1989

5.8

2008

7.4

2019

8.0

1992

4.3

2020

7.2

2015

6.4