1993

4.3

2011

5.5

2020

7.1

2018

6.7

5.6

1911

9.5

1987

6.9

2023

9.4

2013

5.9

2020

7.6

1989

4.5

1897

4.0

2014

7.3

2013

6.1

2009

7.8

1994

4.7

2007

6.7

2011

6.3