Rank	Countries/Territories	Count	Percent
1	United States	591	33.9%
2	China	560	32.1%
3	Germany	95	5.5%
4	Japan	72	4.1%
5	India	59	3.4%
6	Russia	42	2.4%
7	Australia	34	2%
8	Italy	27	1.5%
9	Brazil	24	1.4%
10	Ireland	19	1.1%
11	Korea, Republic of	18	1%
12	Singapore	18	1%
13	Spain	15	0.9%
14	Latvia	15	0.9%
15	Czech Republic	12	0.7%
16	Hong Kong	11	0.6%
17	Canada	11	0.6%
18	Portugal	11	0.6%
19	Egypt	9	0.5%
20	Netherlands	8	0.5%
21	United Kingdom	7	0.4%
22	Romania	6	0.3%
23	Taiwan	6	0.3%
24	Thailand	6	0.3%
25	Turkey	6	0.3%
26	Iran, Islamic Republic of	6	0.3%
27	France	6	0.3%
28	Mexico	5	0.3%
29	Cyprus	4	0.2%
30	Argentina	3	0.2%
31	Austria	3	0.2%
32	Greece	3	0.2%
33	Denmark	3	0.2%
34	Pakistan	3	0.2%
35	Palestine, State of	3	0.2%
36	Philippines	2	0.1%
37	Viet Nam	2	0.1%
38	Bangladesh	2	0.1%
39	Norway	2	0.1%
40	Mongolia	1	0.1%
41	Lithuania	1	0.1%
42	Malaysia	1	0.1%
43	Jordan	1	0.1%
44	Israel	1	0.1%
45	Indonesia	1	0.1%
46	Colombia	1	0.1%
47	Ethiopia	1	0.1%
48	Poland	1	0.1%
49	Saudi Arabia	1	0.1%
50	Ukraine	1	0.1%
51	Sweden	1	0.1%
52	South Africa	1	0.1%