Rank	Countries/Territories	Count	Percent
1	United States	419	32%
2	China	409	31.2%
3	Germany	55	4.2%
4	Japan	54	4.1%
5	India	48	3.7%
6	Russia	39	3%
7	Australia	34	2.6%
8	Italy	26	2%
9	Brazil	22	1.7%
10	Singapore	16	1.2%
11	Spain	15	1.1%
12	Ireland	15	1.1%
13	Latvia	15	1.1%
14	Czech Republic	12	0.9%
15	Korea, Republic of	11	0.8%
16	Portugal	11	0.8%
17	Hong Kong	10	0.8%
18	Canada	8	0.6%
19	Netherlands	7	0.5%
20	Iran, Islamic Republic of	6	0.5%
21	Egypt	6	0.5%
22	France	6	0.5%
23	Romania	6	0.5%
24	Thailand	6	0.5%
25	Taiwan	5	0.4%
26	United Kingdom	5	0.4%
27	Turkey	3	0.2%
28	Greece	3	0.2%
29	Austria	3	0.2%
30	Denmark	3	0.2%
31	Cyprus	3	0.2%
32	Pakistan	3	0.2%
33	Palestine, State of	3	0.2%
34	Philippines	2	0.2%
35	Norway	2	0.2%
36	Mexico	2	0.2%
37	Bangladesh	2	0.2%
38	Argentina	2	0.2%
39	Viet Nam	2	0.2%
40	Ukraine	1	0.1%
41	Saudi Arabia	1	0.1%
42	Sweden	1	0.1%
43	South Africa	1	0.1%
44	Ethiopia	1	0.1%
45	Indonesia	1	0.1%
46	Mongolia	1	0.1%
47	Lithuania	1	0.1%
48	Israel	1	0.1%
49	Jordan	1	0.1%