Rank	Countries/Territories	Count	Percent
1	United States	272	33.5%
2	China	206	25.4%
3	Germany	75	9.2%
4	Canada	24	3%
5	Togo	24	3%
6	Russia	22	2.7%
7	France	17	2.1%
8	Hong Kong	17	2.1%
9	United Kingdom	15	1.8%
10	Netherlands	13	1.6%
11	Japan	11	1.4%
12	Spain	10	1.2%
13	Korea, Republic of	9	1.1%
14	Chile	9	1.1%
15	Egypt	9	1.1%
16	Australia	8	1%
17	Singapore	8	1%
18	Lithuania	7	0.9%
19	India	7	0.9%
20	Belgium	5	0.6%
21	Philippines	5	0.6%
22	Ireland	4	0.5%
23	Taiwan	4	0.5%
24	Pakistan	4	0.5%
25	Argentina	4	0.5%
26	Romania	3	0.4%
27	Switzerland	2	0.2%
28	Mongolia	2	0.2%
29	Portugal	2	0.2%
30	Brazil	2	0.2%
31	Cyprus	1	0.1%
32	Denmark	1	0.1%
33	Iran, Islamic Republic of	1	0.1%
34	Ghana	1	0.1%
35	Greece	1	0.1%
36	Malaysia	1	0.1%
37	Norway	1	0.1%
38	Italy	1	0.1%
39	Saudi Arabia	1	0.1%
40	Turkey	1	0.1%
41	Ukraine	1	0.1%