Rank	Countries/Territories	Count	Percent
1	United States	577	34.1%
2	China	570	33.7%
3	Germany	102	6%
4	India	85	5%
5	Singapore	64	3.8%
6	Canada	26	1.5%
7	Korea, Republic of	22	1.3%
8	Russia	20	1.2%
9	Morocco	18	1.1%
10	Australia	18	1.1%
11	Latvia	16	0.9%
12	Ireland	16	0.9%
13	Netherlands	13	0.8%
14	Switzerland	13	0.8%
15	Japan	12	0.7%
16	Italy	11	0.7%
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	0.4%
22	France	5	0.3%
23	United Arab Emirates	5	0.3%
24	Poland	4	0.2%
25	Taiwan	4	0.2%
26	Hong Kong	4	0.2%
27	Egypt	4	0.2%
28	Malaysia	4	0.2%
29	Pakistan	3	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%