2018

6.7

2009

5.4

2014

4.4

1996

5.6

2000

4.5

2015

5.0

1950

7.1

2018

0.0

2021

6.5

2001

6.5

1986

6.3

2002

6.4

1998

7.0

2003

7.0

1995

5.7

1989

6.0

2002

5.9

1968

6.5

2023

6.9

2007

6.0