Rank	Countries/Territories	Count	Percent
1	United States	399	36.4%
2	China	344	31.4%
3	Germany	118	10.8%
4	Singapore	31	2.8%
5	Japan	20	1.8%
6	France	18	1.6%
7	Canada	18	1.6%
8	Estonia	12	1.1%
9	Netherlands	12	1.1%
10	Spain	11	1%
11	Turkey	11	1%
12	Australia	10	0.9%
13	Greece	7	0.6%
14	Hong Kong	7	0.6%
15	Korea, Republic of	7	0.6%
16	India	6	0.5%
17	Iran, Islamic Republic of	6	0.5%
18	Cyprus	6	0.5%
19	Argentina	5	0.5%
20	Italy	5	0.5%
21	Russia	5	0.5%
22	Serbia	5	0.5%
23	Puerto Rico	4	0.4%
24	Romania	3	0.3%
25	Mongolia	3	0.3%
26	Ireland	3	0.3%
27	Hungary	3	0.3%
28	Ghana	3	0.3%
29	Armenia	2	0.2%
30	Latvia	2	0.2%
31	Norway	2	0.2%
32	South Africa	2	0.2%
33	Sweden	2	0.2%
34	Thailand	1	0.1%
35	United Kingdom	1	0.1%
36	Morocco	1	0.1%
37	Austria	1	0.1%
38	Bangladesh	1	0.1%