Rank	Countries/Territories	Count	Percent
1	United States	781	51.2%
2	China	351	23%
3	Germany	112	7.3%
4	India	72	4.7%
5	Japan	28	1.8%
6	Korea, Republic of	22	1.4%
7	Russia	18	1.2%
8	Austria	17	1.1%
9	Hong Kong	13	0.9%
10	Canada	11	0.7%
11	France	9	0.6%
12	Netherlands	8	0.5%
13	Australia	8	0.5%
14	Viet Nam	8	0.5%
15	Romania	7	0.5%
16	Iran, Islamic Republic of	6	0.4%
17	Senegal	6	0.4%
18	Israel	5	0.3%
19	South Africa	4	0.3%
20	Ireland	3	0.2%
21	Argentina	3	0.2%
22	Belgium	3	0.2%
23	Cyprus	3	0.2%
24	Singapore	3	0.2%
25	Turkey	3	0.2%
26	Congo, The Democratic Republic of The	2	0.1%
27	Denmark	2	0.1%
28	Pakistan	2	0.1%
29	Palestine, State of	1	0.1%
30	Poland	1	0.1%
31	Spain	1	0.1%
32	Taiwan	1	0.1%
33	Tunisia	1	0.1%
34	Italy	1	0.1%
35	Norway	1	0.1%
36	Mongolia	1	0.1%
37	Ethiopia	1	0.1%
38	Czech Republic	1	0.1%
39	Belize	1	0.1%
40	Bulgaria	1	0.1%
41	Chile	1	0.1%
42	Belarus	1	0.1%
43	Ukraine	1	0.1%