2021

3.2

1972

3.0

2005

3.7

1983

5.2

2007

6.6

1999

6.0

2015

7.5

2016

4.4

2002

5.3

2002

5.1

2000

3.3

1984

5.0

1969

4.0

1985

5.0

1982

5.9

1973

4.7

1977

5.1

1977

5.7

1995

3.2

1971

5.2