Rank	Countries/Territories	Count	Percent
1	United States	481	37.3%
2	China	307	23.8%
3	Germany	126	9.8%
4	France	38	3%
5	Brazil	34	2.6%
6	United Kingdom	31	2.4%
7	Australia	22	1.7%
8	Russia	20	1.6%
9	Canada	19	1.5%
10	Indonesia	18	1.4%
11	Japan	17	1.3%
12	Saudi Arabia	17	1.3%
13	Netherlands	14	1.1%
14	Iran, Islamic Republic of	10	0.8%
15	Hong Kong	10	0.8%
16	Hungary	10	0.8%
17	India	10	0.8%
18	Korea, Republic of	9	0.7%
19	Spain	9	0.7%
20	Viet Nam	7	0.5%
21	Nigeria	7	0.5%
22	Singapore	7	0.5%
23	Ethiopia	7	0.5%
24	Cyprus	7	0.5%
25	Cote D'ivoire	6	0.5%
26	Turkey	5	0.4%
27	Belgium	4	0.3%
28	Malaysia	4	0.3%
29	Nepal	3	0.2%
30	Iraq	3	0.2%
31	Israel	3	0.2%
32	Philippines	3	0.2%
33	Taiwan	2	0.2%
34	Pakistan	2	0.2%
35	Slovakia	2	0.2%
36	Bangladesh	2	0.2%
37	Ecuador	2	0.2%
38	Greece	2	0.2%
39	Argentina	1	0.1%
40	Norway	1	0.1%
41	Ireland	1	0.1%
42	Ukraine	1	0.1%
43	Poland	1	0.1%
44	Sweden	1	0.1%
45	Switzerland	1	0.1%
46	Zambia	1	0.1%