Rank	Countries/Territories	Count	Percent
1	United States	559	31.3%
2	China	535	29.9%
3	Germany	125	7%
4	Romania	91	5.1%
5	Japan	56	3.1%
6	India	49	2.7%
7	Russia	48	2.7%
8	France	38	2.1%
9	Brazil	33	1.8%
10	Singapore	26	1.5%
11	Turkey	23	1.3%
12	Spain	20	1.1%
13	Hong Kong	17	1%
14	Canada	16	0.9%
15	Netherlands	14	0.8%
16	Australia	13	0.7%
17	United Kingdom	13	0.7%
18	Ecuador	12	0.7%
19		9	0.5%
20	Cyprus	8	0.4%
21	Switzerland	7	0.4%
22	Taiwan	6	0.3%
23	Ireland	6	0.3%
24	Lithuania	5	0.3%
25	Colombia	5	0.3%
26	Egypt	5	0.3%
27	Pakistan	4	0.2%
28	Iran, Islamic Republic of	4	0.2%
29	Malaysia	3	0.2%
30	Mexico	3	0.2%
31	Korea, Republic of	3	0.2%
32	Latvia	3	0.2%
33	Costa Rica	3	0.2%
34	Belgium	2	0.1%
35	Chile	2	0.1%
36	Bulgaria	2	0.1%
37	Italy	2	0.1%
38	Indonesia	2	0.1%
39	Palestine, State of	2	0.1%
40	Norway	2	0.1%
41	Poland	2	0.1%
42	Thailand	2	0.1%
43	Slovenia	1	0.1%
44	Ukraine	1	0.1%
45	Philippines	1	0.1%
46	Mongolia	1	0.1%
47	Argentina	1	0.1%
48	Denmark	1	0.1%
49	Georgia	1	0.1%