Rank	Countries/Territories	Count	Percent
1	United States	478	38.7%
2	China	430	34.8%
3	Germany	114	9.2%
4	Canada	53	4.3%
5	France	24	1.9%
6	India	19	1.5%
7	Japan	12	1%
8	Netherlands	11	0.9%
9	Singapore	10	0.8%
10	Australia	10	0.8%
11	Cyprus	7	0.6%
12	Pakistan	7	0.6%
13	Ukraine	7	0.6%
14	Sweden	6	0.5%
15	Belgium	5	0.4%
16	Ireland	5	0.4%
17	Iran, Islamic Republic of	4	0.3%
18	Spain	4	0.3%
19	Norway	4	0.3%
20	United Kingdom	3	0.2%
21	Viet Nam	2	0.2%
22	Switzerland	2	0.2%
23	Taiwan	2	0.2%
24	Thailand	2	0.2%
25	Korea, Republic of	2	0.2%
26	Italy	2	0.2%
27	Ethiopia	2	0.2%
28	Argentina	2	0.2%
29	Denmark	1	0.1%
30	Egypt	1	0.1%
31	Colombia	1	0.1%
32	Iraq	1	0.1%
33	Nigeria	1	0.1%
34	Romania	1	0.1%