Rank	Countries/Territories	Count	Percent
1	United States	639	28.5%
2	China	636	28.4%
3	Germany	279	12.4%
4		106	4.7%
5	Iran, Islamic Republic of	72	3.2%
6	India	44	2%
7	United Kingdom	40	1.8%
8	Bangladesh	37	1.7%
9	Norway	36	1.6%
10	Russia	34	1.5%
11	Netherlands	32	1.4%
12	Japan	28	1.2%
13	Canada	26	1.2%
14	Australia	24	1.1%
15	France	23	1%
16	Turkey	18	0.8%
17	Sweden	14	0.6%
18	Singapore	14	0.6%
19	Korea, Republic of	14	0.6%
20	Brazil	11	0.5%
21	Hong Kong	11	0.5%
22	Cyprus	9	0.4%
23	Malaysia	7	0.3%
24	Jordan	6	0.3%
25	Poland	6	0.3%
26	Portugal	6	0.3%
27	Italy	5	0.2%
28	Ireland	5	0.2%
29	Egypt	5	0.2%
30	Denmark	4	0.2%
31	Argentina	4	0.2%
32	Spain	4	0.2%
33	Switzerland	3	0.1%
34	Philippines	3	0.1%
35	Romania	3	0.1%
36	Belgium	3	0.1%
37	Pakistan	3	0.1%
38	Nigeria	2	0.1%
39	Israel	2	0.1%
40	Indonesia	2	0.1%
41	Croatia	2	0.1%
42	Czech Republic	2	0.1%
43	Finland	2	0.1%
44	Hungary	2	0.1%
45	Taiwan	2	0.1%
46	Sri Lanka	2	0.1%
47	Viet Nam	2	0.1%
48	Qatar	1	0%
49	South Africa	1	0%
50	Saudi Arabia	1	0%
51	Palestine, State of	1	0%
52	Mongolia	1	0%
53	Lebanon	1	0%
54	Libya	1	0%