Rank	Countries/Territories	Count	Percent
1	United States	598	34.3%
2	China	580	33.3%
3	Germany	113	6.5%
4	India	88	5%
5	Singapore	64	3.7%
6	Canada	27	1.5%
7	Korea, Republic of	22	1.3%
8	Russia	20	1.1%
9	Ireland	18	1%
10	Morocco	18	1%
11	Australia	18	1%
12	Latvia	16	0.9%
13	Netherlands	15	0.9%
14	Switzerland	13	0.7%
15	Japan	12	0.7%
16	Italy	11	0.6%
17	Iran, Islamic Republic of	10	0.6%
18	Uzbekistan	8	0.5%
19	Indonesia	7	0.4%
20	Cyprus	7	0.4%
21	Norway	6	0.3%
22	Pakistan	5	0.3%
23	France	5	0.3%
24	United Arab Emirates	5	0.3%
25	Poland	4	0.2%
26	Taiwan	4	0.2%
27	Hong Kong	4	0.2%
28	Egypt	4	0.2%
29	Malaysia	4	0.2%
30	New Zealand	3	0.2%
31	Ethiopia	3	0.2%
32	Belgium	3	0.2%
33	Brazil	3	0.2%
34	Argentina	2	0.1%
35	Iraq	2	0.1%
36	Nepal	2	0.1%
37	Turkey	2	0.1%
38	Ukraine	2	0.1%
39	Saudi Arabia	2	0.1%
40	United Kingdom	2	0.1%
41	Viet Nam	2	0.1%
42	Serbia	1	0.1%
43	Mauritius	1	0.1%
44	Mongolia	1	0.1%
45	Philippines	1	0.1%
46	Kenya	1	0.1%
47	Israel	1	0.1%
48	Lithuania	1	0.1%
49	Madagascar	1	0.1%
50	Greece	1	0.1%
51	Denmark	1	0.1%