Rank	Countries/Territories	Count	Percent
1	United States	444	40.3%
2	China	337	30.6%
3	Germany	76	6.9%
4	Netherlands	39	3.5%
5	France	29	2.6%
6	Singapore	20	1.8%
7	United Kingdom	17	1.5%
8	Japan	16	1.5%
9	Iran, Islamic Republic of	15	1.4%
10	Canada	15	1.4%
11	India	9	0.8%
12	Cyprus	8	0.7%
13	Taiwan	8	0.7%
14	Sweden	7	0.6%
15	Switzerland	7	0.6%
16	Turkey	6	0.5%
17	Korea, Republic of	6	0.5%
18	Australia	5	0.5%
19	Hong Kong	5	0.5%
20	Brazil	3	0.3%
21	Egypt	3	0.3%
22	Indonesia	3	0.3%
23	Ireland	3	0.3%
24	Luxembourg	2	0.2%
25	Russia	2	0.2%
26	Norway	2	0.2%
27	Poland	2	0.2%
28	Mexico	2	0.2%
29	Mongolia	2	0.2%
30	Viet Nam	2	0.2%
31	Nigeria	1	0.1%
32	Portugal	1	0.1%
33	South Africa	1	0.1%
34	Spain	1	0.1%
35	Uganda	1	0.1%
36	Tajikistan	1	0.1%
37	Malaysia	1	0.1%
38	Lithuania	1	0.1%