2016

7.3

2021

7.5

2011

8.1

1997

5.8

2015

7.9

2006

3.1

1982

7.6

2004

7.3

2000

7.9

2004

8.6

2005

8.3

1992

6.7

2002

7.9

2002

7.4

1995

6.7

1998

7.1

2021

6.9

1998

6.8

1997

4.7