Rank	Countries/Territories	Count	Percent
1	United States	357	35.6%
2	China	319	31.8%
3	Germany	84	8.4%
4	Japan	32	3.2%
5	Italy	25	2.5%
6	Netherlands	21	2.1%
7	Australia	19	1.9%
8	Iran, Islamic Republic of	13	1.3%
9	Singapore	11	1.1%
10	Russia	10	1%
11	Canada	10	1%
12	France	9	0.9%
13	Taiwan	9	0.9%
14	Cyprus	8	0.8%
15	India	7	0.7%
16	Hong Kong	6	0.6%
17	Malaysia	6	0.6%
18	Pakistan	5	0.5%
19	Brazil	5	0.5%
20	Switzerland	5	0.5%
21	United Kingdom	5	0.5%
22	Ireland	4	0.4%
23	Cuba	3	0.3%
24	Mexico	3	0.3%
25	Nigeria	3	0.3%
26	Korea, Republic of	3	0.3%
27	Poland	2	0.2%
28	Spain	2	0.2%
29	Sweden	2	0.2%
30	Bulgaria	2	0.2%
31	Egypt	2	0.2%
32	Viet Nam	2	0.2%
33	Ukraine	1	0.1%
34	Belgium	1	0.1%
35	Argentina	1	0.1%
36	South Africa	1	0.1%
37	Norway	1	0.1%
38	Moldova, Republic of	1	0.1%
39	Mongolia	1	0.1%
40	Morocco	1	0.1%