Rank	Countries/Territories	Count	Percent
1	United States	328	36.8%
2	China	220	24.7%
3	Germany	120	13.5%
4	Korea, Republic of	47	5.3%
5	India	31	3.5%
6	Ghana	14	1.6%
7	Canada	13	1.5%
8	Netherlands	13	1.5%
9	Singapore	12	1.3%
10	Australia	9	1%
11	France	8	0.9%
12	Japan	8	0.9%
13	Cyprus	7	0.8%
14	Latvia	6	0.7%
15	Saudi Arabia	5	0.6%
16	Philippines	4	0.4%
17	Indonesia	4	0.4%
18	Egypt	4	0.4%
19	Zambia	4	0.4%
20	Croatia	3	0.3%
21	Israel	3	0.3%
22	Italy	3	0.3%
23	Ireland	2	0.2%
24	Namibia	2	0.2%
25	Russia	2	0.2%
26	Bulgaria	2	0.2%
27	Albania	2	0.2%
28	Sri Lanka	2	0.2%
29	Switzerland	1	0.1%
30	Ukraine	1	0.1%
31	United Kingdom	1	0.1%
32	Argentina	1	0.1%
33	Bangladesh	1	0.1%
34	Finland	1	0.1%
35	Georgia	1	0.1%
36	Hong Kong	1	0.1%
37	Hungary	1	0.1%
38	Spain	1	0.1%
39	Romania	1	0.1%
40	Norway	1	0.1%
41	Malaysia	1	0.1%