2019

7.4

1990

6.8

2007

5.5

1988

5.2

2001

6.3

2002

6.3

1995

5.1

1995

5.4

1982

3.0

1999

4.7

2002

6.0

1963

7.5

1977

3.6

2003

5.7

1976

6.7

2005

6.5

1973

6.9

2005

6.2

2007

5.7

2002

4.0