쌍방향 상호작용

5.9

/

2007

7.481

/

1972

6.2

/

2014

7.49

/

2010

6

/

2015

3.1

/

2011

6.6

/

1944

6.1

/

2014

6.4

/

1999

4.2

/

1985

6.2

/

2015

3.4

/

2012

6.8

/

1989

7

/

2013

0

/

2025

4.5

/

2023

4.5

/

2023

6

/

2018

0

/

2023

5

/

2018