Rank	Countries/Territories	Count	Percent
1	China	297	37.8%
2	United States	251	31.9%
3	Germany	62	7.9%
4	Russia	37	4.7%
5	Japan	17	2.2%
6	Taiwan	12	1.5%
7	Netherlands	10	1.3%
8	Sweden	8	1%
9	Singapore	7	0.9%
10	Korea, Republic of	7	0.9%
11	Hong Kong	6	0.8%
12	India	6	0.8%
13	Canada	6	0.8%
14	France	6	0.8%
15	Italy	4	0.5%
16	Chile	4	0.5%
17	Iran, Islamic Republic of	4	0.5%
18	Australia	4	0.5%
19	Romania	4	0.5%
20	Turkey	4	0.5%
21	United Kingdom	3	0.4%
22	Spain	3	0.4%
23	Argentina	3	0.4%
24	Bulgaria	2	0.3%
25	Belgium	2	0.3%
26	Cyprus	2	0.3%
27	Denmark	2	0.3%
28	Ireland	2	0.3%
29	South Africa	2	0.3%
30	Lithuania	2	0.3%
31	Norway	2	0.3%
32	Slovakia	1	0.1%
33	Nepal	1	0.1%
34	Ukraine	1	0.1%
35	Finland	1	0.1%
36	Brazil	1	0.1%