Rank	Countries/Territories	Count	Percent
1	United States	257	33.9%
2	China	176	23.2%
3	Japan	56	7.4%
4	Germany	42	5.5%
5	India	38	5%
6	Canada	29	3.8%
7	Netherlands	11	1.4%
8	Russia	10	1.3%
9	France	10	1.3%
10	Hong Kong	9	1.2%
11	Australia	9	1.2%
12	Romania	9	1.2%
13	Thailand	8	1.1%
14	Iran, Islamic Republic of	8	1.1%
15	Singapore	7	0.9%
16	Spain	6	0.8%
17	Turkey	5	0.7%
18	United Kingdom	5	0.7%
19	Italy	5	0.7%
20	Egypt	5	0.7%
21	Korea, Republic of	4	0.5%
22	Viet Nam	4	0.5%
23	Sweden	3	0.4%
24	Israel	3	0.4%
25	Slovakia	3	0.4%
26	Saudi Arabia	3	0.4%
27	Belgium	3	0.4%
28	Colombia	3	0.4%
29	Cyprus	3	0.4%
30	Argentina	2	0.3%
31	Burkina Faso	2	0.3%
32	Mexico	2	0.3%
33	Portugal	2	0.3%
34	Qatar	2	0.3%
35	Syrian Arab Republic	2	0.3%
36	Taiwan	1	0.1%
37	Yemen	1	0.1%
38	Mongolia	1	0.1%
39	Myanmar	1	0.1%
40	Malaysia	1	0.1%
41	New Zealand	1	0.1%
42	Norway	1	0.1%
43	Poland	1	0.1%
44	Brazil	1	0.1%
45	Bulgaria	1	0.1%
46	Austria	1	0.1%
47	Estonia	1	0.1%
48	Ireland	1	0.1%