Rank	Countries/Territories	Count	Percent
1	United States	573	37.9%
2	China	382	25.2%
3	Canada	82	5.4%
4	India	81	5.4%
5	Germany	52	3.4%
6	Brazil	37	2.4%
7	Russia	21	1.4%
8	Ireland	18	1.2%
9	Netherlands	18	1.2%
10	Korea, Republic of	17	1.1%
11	Hong Kong	16	1.1%
12	South Africa	16	1.1%
13	Spain	16	1.1%
14	Australia	13	0.9%
15	Latvia	13	0.9%
16	Japan	12	0.8%
17	Malaysia	11	0.7%
18	Kazakhstan	11	0.7%
19	United Kingdom	10	0.7%
20	Iran, Islamic Republic of	9	0.6%
21	Pakistan	8	0.5%
22	Chile	8	0.5%
23	Indonesia	7	0.5%
24	Peru	7	0.5%
25	Kenya	7	0.5%
26	France	6	0.4%
27	Singapore	6	0.4%
28	Romania	5	0.3%
29	Philippines	4	0.3%
30	Jordan	4	0.3%
31	Ecuador	4	0.3%
32	Cyprus	4	0.3%
33	Argentina	4	0.3%
34	Slovakia	3	0.2%
35	Sweden	3	0.2%
36	Viet Nam	3	0.2%
37	Taiwan	3	0.2%
38	Slovenia	2	0.1%
39	Serbia	2	0.1%
40	Belgium	2	0.1%
41	Colombia	2	0.1%
42	New Zealand	2	0.1%
43	Norway	2	0.1%
44	Italy	1	0.1%
45	Mauritius	1	0.1%
46	Mexico	1	0.1%
47	Nepal	1	0.1%
48	Denmark	1	0.1%
49	Switzerland	1	0.1%
50	Thailand	1	0.1%