Rank	Countries/Territories	Count	Percent
1	United States	441	36.8%
2	China	235	19.6%
3	Germany	127	10.6%
4	India	32	2.7%
5	Japan	31	2.6%
6	United Kingdom	31	2.6%
7	Canada	26	2.2%
8	Netherlands	21	1.8%
9	Spain	17	1.4%
10	Portugal	16	1.3%
11	Australia	16	1.3%
12	Ireland	13	1.1%
13	Russia	13	1.1%
14	Poland	13	1.1%
15	South Africa	13	1.1%
16	France	12	1%
17	Morocco	11	0.9%
18	Singapore	11	0.9%
19	Iran, Islamic Republic of	10	0.8%
20	Hong Kong	9	0.8%
21	Turkey	8	0.7%
22	Syrian Arab Republic	7	0.6%
23	Philippines	6	0.5%
24	Brazil	6	0.5%
25	Mexico	5	0.4%
26	Sweden	5	0.4%
27	Taiwan	4	0.3%
28	Pakistan	4	0.3%
29	Nigeria	4	0.3%
30	Bangladesh	4	0.3%
31	Guam	4	0.3%
32	Indonesia	4	0.3%
33	Denmark	3	0.3%
34	Egypt	3	0.3%
35	Ethiopia	3	0.3%
36	New Zealand	3	0.3%
37	Norway	2	0.2%
38	Saudi Arabia	2	0.2%
39	Colombia	2	0.2%
40	Cyprus	2	0.2%
41	Mozambique	2	0.2%
42	Korea, Republic of	2	0.2%
43	Latvia	1	0.1%
44	Lithuania	1	0.1%
45	Israel	1	0.1%
46	Hungary	1	0.1%
47	Greece	1	0.1%
48	Czech Republic	1	0.1%
49	Belgium	1	0.1%
50	Algeria	1	0.1%
51	Argentina	1	0.1%
52	Finland	1	0.1%
53	Bulgaria	1	0.1%
54	Romania	1	0.1%
55	Slovakia	1	0.1%
56	Sri Lanka	1	0.1%
57	Ukraine	1	0.1%