Rank	Countries/Territories	Count	Percent
1	United States	423	35.4%
2	China	344	28.8%
3	Canada	76	6.4%
4	India	58	4.9%
5	Germany	37	3.1%
6	Brazil	32	2.7%
7	Russia	18	1.5%
8	Korea, Republic of	16	1.3%
9	Hong Kong	16	1.3%
10	South Africa	16	1.3%
11	Australia	13	1.1%
12	Ireland	12	1%
13	Latvia	12	1%
14	Japan	12	1%
15	Netherlands	11	0.9%
16	Kazakhstan	9	0.8%
17	Pakistan	8	0.7%
18	United Kingdom	7	0.6%
19	Iran, Islamic Republic of	6	0.5%
20	France	6	0.5%
21	Romania	5	0.4%
22	Spain	4	0.3%
23	Ecuador	4	0.3%
24	Indonesia	4	0.3%
25	Argentina	4	0.3%
26	Jordan	4	0.3%
27	Malaysia	4	0.3%
28	Philippines	3	0.3%
29	Chile	3	0.3%
30	Sweden	3	0.3%
31	Slovakia	3	0.3%
32	Taiwan	3	0.3%
33	Slovenia	2	0.2%
34	Cyprus	2	0.2%
35	Serbia	2	0.2%
36	Norway	2	0.2%
37	Kenya	2	0.2%
38	Nepal	1	0.1%
39	New Zealand	1	0.1%
40	Singapore	1	0.1%
41	Denmark	1	0.1%
42	Belgium	1	0.1%
43	Italy	1	0.1%
44	Thailand	1	0.1%
45	Switzerland	1	0.1%