Rank	Countries/Territories	Count	Percent
1	United States	495	38.4%
2	China	312	24.2%
3	Germany	100	7.8%
4	Canada	61	4.7%
5	Australia	46	3.6%
6	United Kingdom	28	2.2%
7	Netherlands	26	2%
8	Japan	22	1.7%
9	Korea, Republic of	17	1.3%
10	Ukraine	17	1.3%
11	Sweden	17	1.3%
12	India	16	1.2%
13	Italy	12	0.9%
14	Singapore	12	0.9%
15	France	11	0.9%
16	Norway	9	0.7%
17	Iran, Islamic Republic of	7	0.5%
18	Ireland	7	0.5%
19	Taiwan	7	0.5%
20	Tanzania, United Republic of	5	0.4%
21	Romania	5	0.4%
22	Brazil	5	0.4%
23	Indonesia	5	0.4%
24	Cyprus	5	0.4%
25	Hong Kong	4	0.3%
26	Viet Nam	4	0.3%
27	Switzerland	3	0.2%
28	Chile	3	0.2%
29	Argentina	3	0.2%
30	Malaysia	3	0.2%
31	Lithuania	2	0.2%
32	Philippines	2	0.2%
33	Poland	2	0.2%
34	Nigeria	2	0.2%
35	Belgium	2	0.2%
36	Ethiopia	2	0.2%
37	Georgia	2	0.2%
38	Turkey	2	0.2%
39	Austria	1	0.1%
40	Egypt	1	0.1%
41	New Zealand	1	0.1%
42	Russia	1	0.1%
43	Luxembourg	1	0.1%
44	Mauritius	1	0.1%
45	Mongolia	1	0.1%