Rank	Countries/Territories	Count	Percent
1	United States	413	35.3%
2	China	271	23.1%
3	Germany	93	7.9%
4	India	38	3.2%
5	Japan	25	2.1%
6	France	25	2.1%
7	Canada	23	2%
8	Israel	22	1.9%
9	United Kingdom	22	1.9%
10	Italy	21	1.8%
11	Korea, Republic of	18	1.5%
12	Thailand	17	1.5%
13	Ukraine	15	1.3%
14	Singapore	15	1.3%
15	Iran, Islamic Republic of	14	1.2%
16	Ireland	11	0.9%
17	Australia	11	0.9%
18	Hong Kong	10	0.9%
19	Netherlands	9	0.8%
20	Brazil	8	0.7%
21	Saudi Arabia	8	0.7%
22	Spain	7	0.6%
23	Russia	6	0.5%
24	Mexico	6	0.5%
25	Bulgaria	5	0.4%
26	Bangladesh	5	0.4%
27	Taiwan	5	0.4%
28	Tanzania, United Republic of	5	0.4%
29	Poland	4	0.3%
30	Argentina	4	0.3%
31	Egypt	4	0.3%
32	Cyprus	3	0.3%
33	Serbia	3	0.3%
34	Turkey	3	0.3%
35	Sweden	2	0.2%
36	South Africa	2	0.2%
37	Ecuador	2	0.2%
38	Oman	2	0.2%
39	Palestine, State of	2	0.2%
40	Indonesia	2	0.2%
41	Lebanon	2	0.2%
42	Mauritius	1	0.1%
43	Iraq	1	0.1%
44	Peru	1	0.1%
45	Pakistan	1	0.1%
46	Czech Republic	1	0.1%
47	Hungary	1	0.1%
48	Algeria	1	0.1%
49	Colombia	1	0.1%