Rank	Countries/Territories	Count	Percent
1	United States	479	38.9%
2	China	391	31.8%
3	Germany	59	4.8%
4	Singapore	57	4.6%
5	United Kingdom	27	2.2%
6	Greece	24	2%
7	Japan	23	1.9%
8	Netherlands	21	1.7%
9	Taiwan	14	1.1%
10	Iran, Islamic Republic of	13	1.1%
11	Italy	11	0.9%
12	Brazil	11	0.9%
13	Sweden	10	0.8%
14	India	8	0.7%
15	Hong Kong	7	0.6%
16	Canada	7	0.6%
17	Cyprus	7	0.6%
18	France	7	0.6%
19	Spain	7	0.6%
20	Russia	5	0.4%
21	Mexico	5	0.4%
22	Romania	4	0.3%
23	Switzerland	4	0.3%
24	Portugal	3	0.2%
25	Argentina	3	0.2%
26	Australia	3	0.2%
27	Ireland	3	0.2%
28	Israel	2	0.2%
29	Malaysia	2	0.2%
30	New Zealand	2	0.2%
31	Morocco	2	0.2%
32	Turkey	2	0.2%
33	Viet Nam	2	0.2%
34	Ukraine	1	0.1%
35	Korea, Republic of	1	0.1%
36	Poland	1	0.1%
37	Hungary	1	0.1%
38	Colombia	1	0.1%