2014

6.4

1993

8.5

2006

7.9

1995

7.9

1971

7.4

1968

7.1

1994

5.9

1993

7.5

1998

5.4

2001

5.9

1999

7.3

2014

5.5

1988

6.3

1975

6.8

1991

6.2

1984

6.9

2000

6.4

2023

7.2

1988

2.0

1986

6.6