Rank	Countries/Territories	Count	Percent
1	United States	676	49%
2	China	343	24.9%
3	Germany	121	8.8%
4	United Kingdom	56	4.1%
5	Japan	32	2.3%
6	Iran, Islamic Republic of	15	1.1%
7	Australia	15	1.1%
8	Austria	14	1%
9	Hong Kong	12	0.9%
10	Netherlands	9	0.7%
11	Malaysia	7	0.5%
12	Spain	7	0.5%
13	Korea, Republic of	7	0.5%
14	Italy	7	0.5%
15	Bulgaria	7	0.5%
16	Cyprus	6	0.4%
17	Canada	5	0.4%
18	India	5	0.4%
19	Ireland	4	0.3%
20	Denmark	4	0.3%
21	Taiwan	3	0.2%
22	Thailand	2	0.1%
23	Tunisia	2	0.1%
24	Mongolia	2	0.1%
25	Sweden	2	0.1%
26	Switzerland	2	0.1%
27	Finland	2	0.1%
28	Brazil	2	0.1%
29	Luxembourg	2	0.1%
30	Argentina	1	0.1%
31	France	1	0.1%
32	Mexico	1	0.1%
33	Norway	1	0.1%
34	Pakistan	1	0.1%
35	Peru	1	0.1%
36	Saudi Arabia	1	0.1%
37	Singapore	1	0.1%
38	Turkey	1	0.1%