Rank	Countries/Territories	Count	Percent
1	United States	298	34.1%
2	China	272	31.2%
3	Germany	51	5.8%
4	Italy	39	4.5%
5	Bulgaria	26	3%
6	Netherlands	23	2.6%
7	Mexico	21	2.4%
8	Canada	16	1.8%
9	Ukraine	14	1.6%
10	Japan	10	1.1%
11	France	10	1.1%
12	Singapore	9	1%
13	Norway	8	0.9%
14	Korea, Republic of	8	0.9%
15	Cyprus	8	0.9%
16		7	0.8%
17	India	6	0.7%
18	Russia	5	0.6%
19	Taiwan	4	0.5%
20	Australia	4	0.5%
21	United Kingdom	4	0.5%
22	Portugal	3	0.3%
23	Libya	3	0.3%
24	Malaysia	2	0.2%
25	Ireland	2	0.2%
26	Nigeria	2	0.2%
27	Lebanon	2	0.2%
28	Turkey	2	0.2%
29	Spain	2	0.2%
30	Belgium	2	0.2%
31	Hong Kong	2	0.2%
32	Indonesia	1	0.1%
33	Iran, Islamic Republic of	1	0.1%
34	Latvia	1	0.1%
35	Brazil	1	0.1%
36	Algeria	1	0.1%
37	Sweden	1	0.1%
38	Mongolia	1	0.1%
39	Mauritius	1	0.1%