Rank	Countries/Territories	Count	Percent
1	United States	326	27.9%
2	Japan	322	27.6%
3	China	192	16.4%
4	Germany	121	10.4%
5	Singapore	60	5.1%
6	Saudi Arabia	17	1.5%
7	Canada	14	1.2%
8	Australia	13	1.1%
9	Netherlands	11	0.9%
10	Korea, Republic of	10	0.9%
11	Taiwan	8	0.7%
12	Ukraine	7	0.6%
13	United Kingdom	6	0.5%
14	Cyprus	6	0.5%
15	Ireland	6	0.5%
16	Russia	5	0.4%
17	India	4	0.3%
18	Switzerland	4	0.3%
19	Hong Kong	3	0.3%
20	France	3	0.3%
21	Cuba	3	0.3%
22	Tunisia	3	0.3%
23	Turkey	2	0.2%
24	South Africa	2	0.2%
25	Spain	2	0.2%
26	Luxembourg	2	0.2%
27	Malaysia	2	0.2%
28	Mauritius	2	0.2%
29	Egypt	2	0.2%
30	Brazil	2	0.2%
31	Iran, Islamic Republic of	2	0.2%
32	Italy	1	0.1%
33	Indonesia	1	0.1%
34	Belgium	1	0.1%
35	Norway	1	0.1%
36	Puerto Rico	1	0.1%
37	Thailand	1	0.1%