排名	国家/地区	数量	占比
1	United States	577	44.5%
2	China	303	23.4%
3	Germany	136	10.5%
4	Russia	33	2.5%
5	Japan	31	2.4%
6	France	21	1.6%
7	India	19	1.5%
8	Korea, Republic of	18	1.4%
9	United Kingdom	17	1.3%
10	Canada	14	1.1%
11	Cyprus	11	0.8%
12	Australia	11	0.8%
13	Singapore	11	0.8%
14	Netherlands	10	0.8%
15	Ireland	10	0.8%
16	Hungary	8	0.6%
17	Hong Kong	7	0.5%
18	Israel	7	0.5%
19	Colombia	6	0.5%
20	Nepal	5	0.4%
21	Pakistan	5	0.4%
22	Spain	5	0.4%
23	Malaysia	4	0.3%
24	Latvia	3	0.2%
25	Thailand	3	0.2%
26	Indonesia	3	0.2%
27	Iran, Islamic Republic of	3	0.2%
28	Egypt	2	0.2%
29	Switzerland	2	0.2%
30	Taiwan	2	0.2%
31	Viet Nam	2	0.2%
32	Venezuela, Bolivarian Republic of	1	0.1%
33	Slovakia	1	0.1%
34	South Africa	1	0.1%
35	Mongolia	1	0.1%
36	Norway	1	0.1%
37	Denmark	1	0.1%
38	Brazil	1	0.1%
39	Italy	1	0.1%