Rank	Countries/Territories	Count	Percent
1	China	506	40.4%
2	United States	456	36.5%
3	Germany	61	4.9%
4	Russia	41	3.3%
5	India	38	3%
6	France	29	2.3%
7	Netherlands	27	2.2%
8	Korea, Republic of	15	1.2%
9	Canada	11	0.9%
10	Ireland	9	0.7%
11	Singapore	7	0.6%
12	Japan	6	0.5%
13	Australia	5	0.4%
14	United Kingdom	5	0.4%
15	Nicaragua	5	0.4%
16	Taiwan	4	0.3%
17	Ukraine	4	0.3%
18	Cyprus	4	0.3%
19	Costa Rica	2	0.2%
20	Croatia	2	0.2%
21	Mexico	2	0.2%
22	Mongolia	1	0.1%
23	Lithuania	1	0.1%
24	Malaysia	1	0.1%
25	Senegal	1	0.1%
26	Switzerland	1	0.1%
27	Denmark	1	0.1%
28	Colombia	1	0.1%
29	Jordan	1	0.1%
30	Indonesia	1	0.1%
31	Iran, Islamic Republic of	1	0.1%
32	Georgia	1	0.1%
33	Guam	1	0.1%