1991

8.1

2013

2.6

2019

0.0

2017

4.8

2026

0.0

2022

9.0

2020

3.5

2005

6.8

1997

6.8

1973

5.7

2008

6.2

1952

5.3

1963

6.3

1932

6.9

1974

7.9

1931

7.5

1994

6.4

1993

6.7

1957

6.8

1974

6.2