Rank	Countries/Territories	Count	Percent
1	United States	353	40.8%
2	China	176	20.3%
3	Germany	92	10.6%
4	Bulgaria	31	3.6%
5	France	24	2.8%
6	India	19	2.2%
7	Singapore	17	2%
8	Japan	15	1.7%
9	Netherlands	14	1.6%
10	Switzerland	14	1.6%
11	Korea, Republic of	13	1.5%
12	United Kingdom	13	1.5%
13	Australia	11	1.3%
14	Canada	8	0.9%
15	Cyprus	7	0.8%
16	Poland	7	0.8%
17	Spain	7	0.8%
18	Iraq	5	0.6%
19	Brazil	5	0.6%
20	Denmark	3	0.3%
21	Algeria	3	0.3%
22	Turkey	3	0.3%
23	Portugal	3	0.3%
24	Ukraine	2	0.2%
25	Thailand	2	0.2%
26	Romania	2	0.2%
27	Italy	2	0.2%
28	Malaysia	2	0.2%
29	Ireland	1	0.1%
30	Georgia	1	0.1%
31	Ghana	1	0.1%
32	Hong Kong	1	0.1%
33	Argentina	1	0.1%
34	Bangladesh	1	0.1%
35	Russia	1	0.1%
36	Saudi Arabia	1	0.1%
37	Sweden	1	0.1%
38	United Arab Emirates	1	0.1%
39	Qatar	1	0.1%
40	Lebanon	1	0.1%
41	Jordan	1	0.1%