Rank	Countries/Territories	Count	Percent
1	United States	447	38.1%
2	China	297	25.3%
3	Germany	123	10.5%
4	France	39	3.3%
5	Netherlands	37	3.2%
6	Canada	33	2.8%
7	Russia	27	2.3%
8	Japan	22	1.9%
9	Romania	14	1.2%
10	Taiwan	14	1.2%
11	India	12	1%
12	United Kingdom	11	0.9%
13	Sweden	10	0.9%
14	Ireland	10	0.9%
15	Costa Rica	7	0.6%
16	Finland	6	0.5%
17	Singapore	6	0.5%
18	Korea, Republic of	5	0.4%
19	Cyprus	4	0.3%
20	Australia	3	0.3%
21	Belgium	3	0.3%
22	Brazil	3	0.3%
23	Iran, Islamic Republic of	3	0.3%
24	Spain	3	0.3%
25	Norway	3	0.3%
26	Ukraine	3	0.3%
27	Thailand	3	0.3%
28	Portugal	2	0.2%
29	Saudi Arabia	2	0.2%
30	Mongolia	2	0.2%
31	Malaysia	2	0.2%
32	Cambodia	2	0.2%
33	Bangladesh	1	0.1%
34	Denmark	1	0.1%
35	Ethiopia	1	0.1%
36	Iraq	1	0.1%
37	Israel	1	0.1%
38	Italy	1	0.1%
39	Hong Kong	1	0.1%
40	Malta	1	0.1%
41	Lebanon	1	0.1%
42	Kenya	1	0.1%
43	Serbia	1	0.1%
44	Oman	1	0.1%
45	Turkey	1	0.1%
46	Viet Nam	1	0.1%