Rank	Countries/Territories	Count	Percent
1	United States	451	41.9%
2	China	326	30.3%
3	Germany	85	7.9%
4	Japan	24	2.2%
5		22	2%
6	France	20	1.9%
7	Australia	18	1.7%
8	Netherlands	12	1.1%
9	Switzerland	11	1%
10	Ukraine	10	0.9%
11	Hong Kong	10	0.9%
12	Cyprus	9	0.8%
13	Korea, Republic of	9	0.8%
14	Indonesia	7	0.6%
15	United Kingdom	7	0.6%
16	Singapore	6	0.6%
17	Canada	5	0.5%
18	Brazil	4	0.4%
19	Spain	4	0.4%
20	Sweden	4	0.4%
21	Russia	4	0.4%
22	Romania	3	0.3%
23	Belgium	3	0.3%
24	Burkina Faso	2	0.2%
25	Azerbaijan	2	0.2%
26	India	2	0.2%
27	Ireland	2	0.2%
28	Turkey	2	0.2%
29	Viet Nam	2	0.2%
30	Virgin Islands, U.S.	1	0.1%
31	Saudi Arabia	1	0.1%
32	Nigeria	1	0.1%
33	Portugal	1	0.1%
34	Iran, Islamic Republic of	1	0.1%
35	Mongolia	1	0.1%
36	Hungary	1	0.1%
37	Czech Republic	1	0.1%
38	Egypt	1	0.1%
39	Colombia	1	0.1%
40	Argentina	1	0.1%