Rank	Countries/Territories	Count	Percent
1	United States	402	38.8%
2	China	260	25.1%
3	Germany	101	9.7%
4	Iran, Islamic Republic of	25	2.4%
5	Japan	25	2.4%
6	Canada	22	2.1%
7	Turkey	21	2%
8	India	17	1.6%
9	Singapore	16	1.5%
10	Netherlands	13	1.3%
11	France	13	1.3%
12	Australia	11	1.1%
13	Korea, Republic of	9	0.9%
14	Argentina	8	0.8%
15	Iraq	7	0.7%
16	Ireland	7	0.7%
17	United Kingdom	7	0.7%
18	Thailand	6	0.6%
19	Russia	6	0.6%
20	Saudi Arabia	4	0.4%
21	Macao	4	0.4%
22	Romania	4	0.4%
23	Norway	4	0.4%
24	Hong Kong	4	0.4%
25	Sweden	4	0.4%
26	Switzerland	3	0.3%
27	Jordan	3	0.3%
28	Cyprus	3	0.3%
29	Colombia	2	0.2%
30	Israel	2	0.2%
31	Italy	2	0.2%
32	Greece	2	0.2%
33	Panama	2	0.2%
34	Philippines	2	0.2%
35	Morocco	2	0.2%
36	Tunisia	2	0.2%
37	Viet Nam	2	0.2%
38	Taiwan	1	0.1%
39	Mexico	1	0.1%
40	South Africa	1	0.1%
41	Spain	1	0.1%
42	Portugal	1	0.1%
43	Dominican Republic	1	0.1%
44	Egypt	1	0.1%
45		1	0.1%
46	Belgium	1	0.1%