2015

7.8

2001

8.9

1990

5.8

2002

6.1

1971

6.7

1992

6.8

1999

7.6

2012

6.3

1989

7.3

2004

7.2

1979

7.1

1999

6.1

1895

6.7

1990

5.9

1977

7.0

2021

6.5

1998

6.2

1949

6.9

2003

6.8

1950

7.6