Table 1. The top 20 high frequency key words.

Rank	Keyword	Indicator value	Rank	Keyword	Indicator value
1	China	1.000	11	Summit	0.205
2	Economic	0.703	12	Strategy	0.204
3	Member States	0.647	13	World	0.202
4	International	0.597	14	Central Asia	0.198
5	Country	0.526	15	President	0.189
6	Area	0.446	16	Eurasian	0.187
7	Russia	0.370	17	Political	0.170
8	Meeting	0.346	18	Prime Minister	0.165
9	Relationship	0.240	19	Mechanism	0.160
10	Energy	0.228	20	Project	0.156