2015

6.4

1999

6.6

2021

6.2

1975

4.5

1990

5.8

2020

7.2

2003

6.1

1974

6.3

2004

10.0

1971

6.7

1990

4.4

5.0

1972

7.7

2005

9.9

2021

7.8

2015

8.4

1987

7.5

2015

5.8

1987

8.0

1984

7.1