2021

6.1

1988

6.5

2011

6.6

7.0

1975

6.1

2003

6.0

1991

5.3

2015

6.4

2023

6.8

2015

6.6

1966

6.1

2023

6.5

1965

6.3

2004

6.9

1978

5.9

2008

5.8

1985

6.8

1989

5.4

2006

6.7

1969

6.6