Rank	Countries/Territories	Count	Percent
1	United States	347	30.4%
2	China	310	27.2%
3	Belgium	84	7.4%
4	Germany	67	5.9%
5	Netherlands	42	3.7%
6	Bulgaria	29	2.5%
7	Canada	23	2%
8	United Kingdom	20	1.8%
9	Sweden	17	1.5%
10	France	17	1.5%
11	Japan	17	1.5%
12	Singapore	15	1.3%
13	Russia	10	0.9%
14	Iran, Islamic Republic of	10	0.9%
15	Latvia	10	0.9%
16	Mexico	9	0.8%
17	Turkey	9	0.8%
18	Romania	8	0.7%
19	Ireland	8	0.7%
20	Peru	8	0.7%
21	Brazil	8	0.7%
22	Poland	7	0.6%
23	Korea, Republic of	5	0.4%
24	Australia	5	0.4%
25	Chile	5	0.4%
26	Cyprus	5	0.4%
27	Egypt	4	0.4%
28	India	4	0.4%
29	Italy	4	0.4%
30	Spain	4	0.4%
31	Norway	3	0.3%
32	Thailand	3	0.3%
33	Philippines	3	0.3%
34	Hong Kong	3	0.3%
35	Algeria	3	0.3%
36	Colombia	2	0.2%
37	Mauritius	2	0.2%
38	Myanmar	2	0.2%
39	South Africa	2	0.2%
40	Serbia	1	0.1%
41	Nigeria	1	0.1%
42	Portugal	1	0.1%
43	Mongolia	1	0.1%
44	Lithuania	1	0.1%
45	Finland	1	0.1%
46	Denmark	1	0.1%