Rank	Countries/Territories	Count	Percent
1	United States	259	29.4%
2	China	197	22.3%
3	Canada	95	10.8%
4	Germany	69	7.8%
5	Korea, Republic of	30	3.4%
6	Japan	26	2.9%
7	Brazil	23	2.6%
8	India	21	2.4%
9	United Kingdom	18	2%
10	Australia	13	1.5%
11	Singapore	11	1.2%
12	Spain	11	1.2%
13	Netherlands	10	1.1%
14	Belgium	10	1.1%
15	Czech Republic	9	1%
16	France	9	1%
17	Hong Kong	8	0.9%
18	Cyprus	7	0.8%
19	Norway	6	0.7%
20	Greece	5	0.6%
21	Israel	4	0.5%
22	Russia	4	0.5%
23	Saudi Arabia	4	0.5%
24	Mexico	4	0.5%
25	Taiwan	4	0.5%
26	South Africa	3	0.3%
27	Italy	3	0.3%
28	Iran, Islamic Republic of	3	0.3%
29	Colombia	2	0.2%
30	Poland	2	0.2%
31	Romania	2	0.2%
32	Malaysia	2	0.2%
33	Sweden	2	0.2%
34	Switzerland	2	0.2%
35	Sri Lanka	1	0.1%
36	Austria	1	0.1%
37	Ireland	1	0.1%
38	Indonesia	1	0.1%