2017

5.8

1994

6.1

2014

4.3

2002

6.2

1971

8.1

1990

6.4

1992

5.6

1991

4.5

2022

5.9

2003

6.2

1991

6.5

1990

5.9

2002

6.4

2000

7.0

1997

6.1

1990

4.9

2016

6.4

2006

5.6