Rank	Countries/Territories	Count	Percent
1	United States	606	37.3%
2	China	462	28.4%
3	Germany	128	7.9%
4	India	74	4.6%
5	Iran, Islamic Republic of	48	3%
6	Japan	32	2%
7	Canada	30	1.8%
8	Russia	24	1.5%
9	Brazil	19	1.2%
10	Singapore	15	0.9%
11	United Kingdom	13	0.8%
12	Korea, Republic of	13	0.8%
13	Hong Kong	12	0.7%
14	Italy	12	0.7%
15	Taiwan	12	0.7%
16	Croatia	11	0.7%
17	Netherlands	10	0.6%
18	Spain	10	0.6%
19	France	9	0.6%
20	Australia	9	0.6%
21	Ireland	8	0.5%
22	Cyprus	6	0.4%
23	Colombia	6	0.4%
24	Sweden	6	0.4%
25	Mexico	5	0.3%
26	Hungary	5	0.3%
27	Turkey	4	0.2%
28	South Africa	3	0.2%
29	Switzerland	2	0.1%
30	Viet Nam	2	0.1%
31	Mongolia	2	0.1%
32	Morocco	2	0.1%
33	Saudi Arabia	2	0.1%
34	Pakistan	2	0.1%
35	Poland	2	0.1%
36	Portugal	2	0.1%
37	Qatar	2	0.1%
38	Argentina	2	0.1%
39	Egypt	2	0.1%
40	Denmark	1	0.1%
41	Israel	1	0.1%
42	Bangladesh	1	0.1%
43	Chile	1	0.1%
44	Romania	1	0.1%
45	Philippines	1	0.1%
46	New Zealand	1	0.1%
47	Malaysia	1	0.1%
48	Ukraine	1	0.1%
49	Thailand	1	0.1%
50	Slovakia	1	0.1%