1999

6.8

1985

6.9

2008

6.7

2024

6.0

2023

6.9

7.1

2020

7.3

1972

6.6

2011

6.4

1968

6.4

2023

6.4

2020

6.5

2022

9.9

1993

6.5

1990

6.5

2011

6.6

1975

7.1

2024

7.7

1994

5.7

2024

6.6