Rank	Countries/Territories	Count	Percent
1	United States	494	46.9%
2	China	153	14.5%
3	Germany	108	10.2%
4	France	37	3.5%
5	Australia	26	2.5%
6	Canada	24	2.3%
7	Saudi Arabia	23	2.2%
8	Italy	20	1.9%
9	Netherlands	17	1.6%
10	India	17	1.6%
11	Taiwan	14	1.3%
12	Romania	12	1.1%
13	Ireland	11	1%
14	Costa Rica	10	0.9%
15	Singapore	9	0.9%
16	New Zealand	8	0.8%
17	Korea, Republic of	7	0.7%
18	Mexico	7	0.7%
19	Cyprus	6	0.6%
20	Hong Kong	6	0.6%
21	Austria	4	0.4%
22	Sweden	4	0.4%
23	Pakistan	3	0.3%
24	Spain	3	0.3%
25	Israel	3	0.3%
26	Japan	3	0.3%
27	Bangladesh	3	0.3%
28	Czech Republic	3	0.3%
29	Iran, Islamic Republic of	3	0.3%
30	Greece	2	0.2%
31	South Africa	2	0.2%
32	Russia	2	0.2%
33	Turkey	2	0.2%
34	Ukraine	2	0.2%
35	Viet Nam	1	0.1%
36	Sri Lanka	1	0.1%
37	Norway	1	0.1%
38	Argentina	1	0.1%
39	Iraq	1	0.1%
40	Brazil	1	0.1%