Rank	Countries/Territories	Count	Percent
1	United States	619	41.2%
2	China	324	21.6%
3	Germany	102	6.8%
4	India	48	3.2%
5	Japan	48	3.2%
6	Canada	46	3.1%
7	Netherlands	34	2.3%
8	Ireland	28	1.9%
9	Australia	26	1.7%
10	Iran, Islamic Republic of	23	1.5%
11	United Kingdom	22	1.5%
12	Singapore	19	1.3%
13	Korea, Republic of	17	1.1%
14	Malaysia	16	1.1%
15	Pakistan	12	0.8%
16	Switzerland	10	0.7%
17	Taiwan	10	0.7%
18	Russia	9	0.6%
19	France	7	0.5%
20	Brazil	7	0.5%
21	Cyprus	7	0.5%
22	Bangladesh	5	0.3%
23	Italy	5	0.3%
24	Portugal	5	0.3%
25	Mexico	4	0.3%
26	New Zealand	3	0.2%
27	Romania	3	0.2%
28	Thailand	3	0.2%
29	Turkey	3	0.2%
30	Ukraine	3	0.2%
31	Serbia	2	0.1%
32	Norway	2	0.1%
33	Peru	2	0.1%
34	Morocco	2	0.1%
35	Iraq	2	0.1%
36	Croatia	2	0.1%
37	Egypt	2	0.1%
38	Greece	2	0.1%
39	Hong Kong	2	0.1%
40	Ghana	1	0.1%
41	Czech Republic	1	0.1%
42	Argentina	1	0.1%
43	Armenia	1	0.1%
44	Colombia	1	0.1%
45	Latvia	1	0.1%
46	Lithuania	1	0.1%
47	Mongolia	1	0.1%
48	Tunisia	1	0.1%
49	Saudi Arabia	1	0.1%
50	Senegal	1	0.1%
51	Slovakia	1	0.1%
52	Spain	1	0.1%
53	Sweden	1	0.1%
54	Viet Nam	1	0.1%