ஐ-ஆர் 8

6.8

/

2010

10

/

2025

7.9

/

2015

5.4

/

1979

5.7

/

2019

6.779

/

2017

6.2

/

1955

8.8

/

2003

5.6

/

2000

7.1

/

2023

6.274

/

2009

6.13

/

2013

5.8

/

1982