1994

7.1

1991

7.5

2019

8.0

2002

6.0

2017

5.0

1986

6.9

2017

7.2

2015

6.5

1996

4.7

2018

6.7

2015

6.3

1998

4.9

2016

8.4

2012

6.4

1979

3.0

2015

0.0

2018

6.0

1987

6.6

1955

5.8

2023

8.1