Rank	Countries/Territories	Count	Percent
1	United States	339	31.2%
2	China	332	30.5%
3	Germany	101	9.3%
4	Australia	37	3.4%
5	Russia	35	3.2%
6	United Kingdom	30	2.8%
7	India	27	2.5%
8	Ireland	27	2.5%
9	Japan	19	1.7%
10	Canada	18	1.7%
11	Netherlands	18	1.7%
12	Singapore	16	1.5%
13	Lithuania	8	0.7%
14	Cyprus	7	0.6%
15	Denmark	6	0.6%
16	Romania	6	0.6%
17	Hong Kong	5	0.5%
18	France	5	0.5%
19	Argentina	5	0.5%
20	Belgium	5	0.5%
21	Korea, Republic of	4	0.4%
22	Iran, Islamic Republic of	4	0.4%
23	Portugal	4	0.4%
24	Sri Lanka	4	0.4%
25	Sweden	3	0.3%
26	Serbia	3	0.3%
27	Saudi Arabia	2	0.2%
28	Nigeria	2	0.2%
29	Mauritius	2	0.2%
30	Mexico	2	0.2%
31	Ghana	2	0.2%
32	Greece	2	0.2%
33	Italy	2	0.2%
34	Mongolia	1	0.1%
35	Norway	1	0.1%
36	Switzerland	1	0.1%
37	Taiwan	1	0.1%
38	Ukraine	1	0.1%
39	Spain	1	0.1%