Rank	Countries/Territories	Count	Percent
1	United States	474	39.1%
2	China	334	27.6%
3	Germany	63	5.2%
4	Canada	48	4%
5		47	3.9%
6	Iran, Islamic Republic of	38	3.1%
7	France	28	2.3%
8	Japan	24	2%
9	Hong Kong	15	1.2%
10	Cyprus	15	1.2%
11	Sweden	14	1.2%
12	Netherlands	13	1.1%
13	Switzerland	10	0.8%
14	India	9	0.7%
15	Portugal	8	0.7%
16	Russia	8	0.7%
17	Spain	6	0.5%
18	Australia	6	0.5%
19	Argentina	5	0.4%
20	United Kingdom	5	0.4%
21	Taiwan	5	0.4%
22	Singapore	5	0.4%
23	Pakistan	3	0.2%
24	Korea, Republic of	3	0.2%
25	Ukraine	3	0.2%
26	Egypt	3	0.2%
27	Brazil	3	0.2%
28	Belgium	2	0.2%
29	Austria	2	0.2%
30	Ireland	2	0.2%
31	Italy	2	0.2%
32	Malaysia	2	0.2%
33	Norway	2	0.2%
34	United Arab Emirates	1	0.1%
35	Georgia	1	0.1%
36	Indonesia	1	0.1%
37	Bangladesh	1	0.1%