Rank	Countries/Territories	Count	Percent
1	United States	244	19.1%
2	China	197	15.4%
3	Canada	166	13%
4	Germany	104	8.1%
5	Turkey	52	4.1%
6	Netherlands	44	3.4%
7	United Kingdom	41	3.2%
8	India	39	3%
9	Korea, Republic of	32	2.5%
10	Ireland	27	2.1%
11	Australia	25	2%
12	Taiwan	25	2%
13	Mexico	19	1.5%
14	Japan	17	1.3%
15	Singapore	16	1.3%
16	South Africa	16	1.3%
17	Iran, Islamic Republic of	15	1.2%
18	Egypt	15	1.2%
19	Pakistan	13	1%
20	Thailand	10	0.8%
21	Sweden	9	0.7%
22	Ghana	9	0.7%
23	Brazil	8	0.6%
24	Denmark	8	0.6%
25	Belgium	7	0.5%
26	Indonesia	7	0.5%
27	Finland	7	0.5%
28	Malaysia	7	0.5%
29	Iraq	6	0.5%
30	Uganda	6	0.5%
31	Ukraine	6	0.5%
32	Panama	6	0.5%
33	Viet Nam	6	0.5%
34	Spain	5	0.4%
35	Russia	5	0.4%
36	Saudi Arabia	5	0.4%
37	France	5	0.4%
38	Hong Kong	5	0.4%
39	Bangladesh	4	0.3%
40	Nigeria	4	0.3%
41	Philippines	4	0.3%
42	Portugal	3	0.2%
43	Romania	3	0.2%
44	Sri Lanka	3	0.2%
45	Tanzania, United Republic of	3	0.2%
46	New Zealand	3	0.2%
47	Ethiopia	2	0.2%
48	Nepal	2	0.2%
49	Israel	2	0.2%
50	Italy	2	0.2%
51	Lithuania	2	0.2%
52	Luxembourg	1	0.1%
53	Jordan	1	0.1%
54	Norway	1	0.1%
55	Colombia	1	0.1%
56	Cyprus	1	0.1%
57	Georgia	1	0.1%
58	Estonia	1	0.1%
59	Serbia	1	0.1%