Rank	Countries/Territories	Count	Percent
1	United States	578	44%
2	China	381	29%
3	Germany	75	5.7%
4	Canada	25	1.9%
5	India	22	1.7%
6	Japan	22	1.7%
7	France	20	1.5%
8	Taiwan	17	1.3%
9	Singapore	13	1%
10	Spain	13	1%
11	Australia	13	1%
12	Netherlands	12	0.9%
13	Brazil	9	0.7%
14	Egypt	9	0.7%
15	United Kingdom	9	0.7%
16	Russia	8	0.6%
17	Hong Kong	7	0.5%
18	Iran, Islamic Republic of	6	0.5%
19	Ireland	6	0.5%
20	Greece	5	0.4%
21	Cyprus	5	0.4%
22	South Africa	5	0.4%
23	Sweden	4	0.3%
24	Romania	4	0.3%
25	Turkey	4	0.3%
26	Argentina	4	0.3%
27	Mexico	4	0.3%
28	Pakistan	4	0.3%
29	Korea, Republic of	4	0.3%
30	Lithuania	3	0.2%
31	Malaysia	2	0.2%
32	Indonesia	2	0.2%
33	Philippines	2	0.2%
34	Poland	2	0.2%
35	Belgium	2	0.2%
36	Cambodia	2	0.2%
37	Tunisia	2	0.2%
38	Switzerland	1	0.1%
39	Bangladesh	1	0.1%
40	Hungary	1	0.1%
41	Ghana	1	0.1%
42	Georgia	1	0.1%
43	Saudi Arabia	1	0.1%
44	New Zealand	1	0.1%
45	Nigeria	1	0.1%