쌍방향 상호작용

5.989

/

2015

7.49

/

1972

5.9

/

2007

6.2

/

2014

6.679

/

1944

6.115

/

2014

0

/

2023

0

/

2014

3

/

2016

7.487

/

2010

6.2

/

2015

0

/

2025

0

/

2017

5

/

2018

3.4

/

2012

3.1

/

2011

6

/

2012

4.5

/

2023

4.2

/

1985

6.4

/

1999