Rank	Countries/Territories	Count	Percent
1	United States	371	39.4%
2	China	218	23.2%
3	Germany	97	10.3%
4	Netherlands	31	3.3%
5	Bulgaria	20	2.1%
6	Canada	18	1.9%
7	France	18	1.9%
8	India	18	1.9%
9	Singapore	18	1.9%
10	Hong Kong	14	1.5%
11	Japan	13	1.4%
12	United Kingdom	13	1.4%
13	Thailand	12	1.3%
14	Viet Nam	8	0.9%
15	Turkey	7	0.7%
16	Russia	6	0.6%
17	South Africa	6	0.6%
18	Sweden	5	0.5%
19	Australia	5	0.5%
20	Korea, Republic of	4	0.4%
21	Nigeria	4	0.4%
22	Ireland	4	0.4%
23	Italy	4	0.4%
24	Spain	3	0.3%
25	Hungary	3	0.3%
26	Bangladesh	2	0.2%
27	Cyprus	2	0.2%
28	Poland	2	0.2%
29	Portugal	2	0.2%
30	Romania	2	0.2%
31	Iran, Islamic Republic of	2	0.2%
32	Mexico	2	0.2%
33	Peru	1	0.1%
34	Philippines	1	0.1%
35	Ukraine	1	0.1%
36	Argentina	1	0.1%
37	Indonesia	1	0.1%
38	Latvia	1	0.1%
39	Mauritius	1	0.1%