Rank	Countries/Territories	Count	Percent
1	United States	488	42.7%
2	China	323	28.3%
3	Germany	88	7.7%
4	Korea, Republic of	39	3.4%
5	Japan	27	2.4%
6	India	27	2.4%
7	Canada	26	2.3%
8	Singapore	16	1.4%
9	Australia	13	1.1%
10	Netherlands	12	1%
11	Hong Kong	9	0.8%
12	France	6	0.5%
13	Ireland	6	0.5%
14	Iran, Islamic Republic of	5	0.4%
15	Cyprus	5	0.4%
16	Ecuador	5	0.4%
17	Ukraine	5	0.4%
18	Croatia	4	0.3%
19	Bangladesh	4	0.3%
20	Kenya	4	0.3%
21	Philippines	3	0.3%
22	Nepal	3	0.3%
23	Turkey	3	0.3%
24	United Kingdom	3	0.3%
25	Spain	2	0.2%
26	Sweden	2	0.2%
27	Ethiopia	2	0.2%
28	Algeria	1	0.1%
29	Argentina	1	0.1%
30	Indonesia	1	0.1%
31	Taiwan	1	0.1%
32	Thailand	1	0.1%
33	Oman	1	0.1%
34	Pakistan	1	0.1%
35	South Africa	1	0.1%
36	Portugal	1	0.1%
37	Romania	1	0.1%
38	Russia	1	0.1%
39	Mongolia	1	0.1%
40	United Arab Emirates	1	0.1%