2020

7.3

1989

6.2

1985

6.1

1987

7.8

1969

7.1

1964

7.4

1998

6.6

1989

5.2

1960

7.5

1999

8.0

1956

7.7

1980

7.9

2004

6.1

1991

6.7

2011

5.8

1991

7.3

2005

6.3

1986

5.8

1977

8.1

1953

5.4