Rank	Countries/Territories	Count	Percent
1	United States	482	43.2%
2	China	319	28.6%
3	Germany	76	6.8%
4	Japan	37	3.3%
5	Netherlands	29	2.6%
6	Romania	24	2.1%
7	France	20	1.8%
8	Taiwan	16	1.4%
9	United Kingdom	15	1.3%
10	Singapore	13	1.2%
11	Canada	13	1.2%
12	Argentina	9	0.8%
13	Iran, Islamic Republic of	7	0.6%
14	India	6	0.5%
15	Viet Nam	5	0.4%
16	Korea, Republic of	5	0.4%
17	Cyprus	4	0.4%
18	Egypt	3	0.3%
19	Australia	3	0.3%
20	Hong Kong	3	0.3%
21	Spain	3	0.3%
22	Ukraine	3	0.3%
23	Switzerland	2	0.2%
24	Saudi Arabia	2	0.2%
25	Lithuania	2	0.2%
26	Norway	2	0.2%
27	Peru	2	0.2%
28	Ireland	2	0.2%
29	Belgium	2	0.2%
30	Cambodia	2	0.2%
31	Bangladesh	1	0.1%
32	Colombia	1	0.1%
33	Indonesia	1	0.1%
34	Russia	1	0.1%
35	Mongolia	1	0.1%
36	Latvia	1	0.1%