Rank	Countries/Territories	Count	Percent
1	United States	535	40.4%
2	China	349	26.4%
3	Germany	123	9.3%
4	Bulgaria	47	3.6%
5	France	31	2.3%
6	United Kingdom	21	1.6%
7	India	20	1.5%
8	Netherlands	19	1.4%
9	Japan	18	1.4%
10	Singapore	17	1.3%
11	Korea, Republic of	16	1.2%
12	Australia	16	1.2%
13	Switzerland	14	1.1%
14	Canada	13	1%
15	Cyprus	12	0.9%
16	Poland	7	0.5%
17	Spain	7	0.5%
18	Brazil	5	0.4%
19	Iraq	5	0.4%
20	Malaysia	4	0.3%
21	Thailand	4	0.3%
22	Ukraine	4	0.3%
23	Turkey	3	0.2%
24	Sweden	3	0.2%
25	Portugal	3	0.2%
26	Denmark	3	0.2%
27	Algeria	3	0.2%
28	Argentina	2	0.2%
29	Ireland	2	0.2%
30	Italy	2	0.2%
31	South Africa	2	0.2%
32	Romania	2	0.2%
33	Russia	1	0.1%
34	Saudi Arabia	1	0.1%
35	Qatar	1	0.1%
36	Lebanon	1	0.1%
37	Jordan	1	0.1%
38	Georgia	1	0.1%
39	Ghana	1	0.1%
40	Hong Kong	1	0.1%
41	Bangladesh	1	0.1%
42	Taiwan	1	0.1%
43	United Arab Emirates	1	0.1%