Rank	Countries/Territories	Count	Percent
1	United States	440	49.7%
2	China	192	21.7%
3	Germany	61	6.9%
4	India	37	4.2%
5	Canada	25	2.8%
6	France	22	2.5%
7	Japan	12	1.4%
8	Korea, Republic of	8	0.9%
9	United Kingdom	8	0.9%
10	Taiwan	7	0.8%
11	Ireland	6	0.7%
12	Colombia	6	0.7%
13	Singapore	5	0.6%
14	Viet Nam	5	0.6%
15	Netherlands	4	0.5%
16	Cyprus	4	0.5%
17	Australia	4	0.5%
18	Belgium	3	0.3%
19	Egypt	3	0.3%
20	Sweden	3	0.3%
21	Malaysia	3	0.3%
22	Morocco	3	0.3%
23	Myanmar	2	0.2%
24	Mexico	2	0.2%
25	Portugal	2	0.2%
26	Romania	2	0.2%
27	Iran, Islamic Republic of	2	0.2%
28	Argentina	2	0.2%
29	Czech Republic	2	0.2%
30	Israel	1	0.1%
31	Greece	1	0.1%
32	Norway	1	0.1%
33	Oman	1	0.1%
34	Switzerland	1	0.1%
35	Spain	1	0.1%
36	Sri Lanka	1	0.1%
37	Kuwait	1	0.1%
38	Lebanon	1	0.1%
39	Tanzania, United Republic of	1	0.1%