Rank	Countries/Territories	Count	Percent
1	United States	321	37.3%
2	China	242	28.1%
3	Germany	62	7.2%
4	India	35	4.1%
5		19	2.2%
6	France	15	1.7%
7	Russia	12	1.4%
8	Ukraine	11	1.3%
9	Canada	11	1.3%
10	Australia	11	1.3%
11	Iran, Islamic Republic of	10	1.2%
12	Japan	9	1%
13	Malaysia	8	0.9%
14	United Arab Emirates	8	0.9%
15	United Kingdom	7	0.8%
16	Belgium	7	0.8%
17	Singapore	6	0.7%
18	Jordan	5	0.6%
19	Romania	5	0.6%
20	Greece	5	0.6%
21	Ghana	4	0.5%
22	Cyprus	4	0.5%
23	Netherlands	4	0.5%
24	Korea, Republic of	4	0.5%
25	Sweden	4	0.5%
26	Saudi Arabia	3	0.3%
27	Brazil	3	0.3%
28	Hong Kong	3	0.3%
29	Viet Nam	3	0.3%
30	Turkey	2	0.2%
31	Hungary	2	0.2%
32	Albania	2	0.2%
33	Colombia	2	0.2%
34	Norway	2	0.2%
35	Mongolia	2	0.2%
36	Mexico	1	0.1%
37	Spain	1	0.1%
38	Sudan	1	0.1%
39	Switzerland	1	0.1%
40	Thailand	1	0.1%
41	Czech Republic	1	0.1%
42	Egypt	1	0.1%
43	Iraq	1	0.1%