2018

6.6

2000

4.3

2017

6.3

2005

4.9

1967

6.7

1953

2.8

2019

0.0

1997

7.7

1999

4.5

1987

7.3

1989

7.0

1992

6.7

1998

6.6

1990

6.1

1968

0.0

1993

6.0

1982

5.2

1984

6.6

1991

7.1

1985

6.4