Rank	Countries/Territories	Count	Percent
1	United States	331	36.7%
2	China	143	15.9%
3	Serbia	52	5.8%
4	Germany	49	5.4%
5	Russia	34	3.8%
6	Indonesia	31	3.4%
7	India	30	3.3%
8	Australia	26	2.9%
9	Taiwan	25	2.8%
10	Japan	19	2.1%
11	Canada	18	2%
12	Hong Kong	15	1.7%
13	Ireland	15	1.7%
14	France	10	1.1%
15	Switzerland	9	1%
16	United Kingdom	9	1%
17	Iran, Islamic Republic of	8	0.9%
18	Korea, Republic of	8	0.9%
19	Brazil	5	0.6%
20	Singapore	5	0.6%
21	Spain	4	0.4%
22	Finland	4	0.4%
23	Netherlands	4	0.4%
24	Romania	3	0.3%
25	Malaysia	3	0.3%
26	Mexico	3	0.3%
27	Moldova, Republic of	3	0.3%
28	Israel	3	0.3%
29	Denmark	3	0.3%
30	Argentina	3	0.3%
31	Belgium	2	0.2%
32	Chile	2	0.2%
33	Jordan	2	0.2%
34	South Africa	2	0.2%
35	Thailand	2	0.2%
36	Ukraine	2	0.2%
37	Viet Nam	1	0.1%
38	Trinidad and Tobago	1	0.1%
39	Tunisia	1	0.1%
40	Turkey	1	0.1%
41	Sweden	1	0.1%
42	Nepal	1	0.1%
43	Peru	1	0.1%
44	Poland	1	0.1%
45	Bulgaria	1	0.1%
46	Bangladesh	1	0.1%
47	Colombia	1	0.1%
48	Czech Republic	1	0.1%
49	Hungary	1	0.1%
50	Guam	1	0.1%