Rank	Countries/Territories	Count	Percent
1	United States	608	39%
2	China	344	22.1%
3	Germany	199	12.8%
4	Spain	76	4.9%
5	Japan	61	3.9%
6	Korea, Republic of	58	3.7%
7	Singapore	22	1.4%
8	Canada	20	1.3%
9	Switzerland	16	1%
10	France	16	1%
11	Netherlands	15	1%
12	Sweden	14	0.9%
13	India	10	0.6%
14	United Kingdom	10	0.6%
15	Australia	9	0.6%
16	Romania	9	0.6%
17	Russia	7	0.4%
18	Brazil	7	0.4%
19	Viet Nam	6	0.4%
20	Cyprus	5	0.3%
21	Iran, Islamic Republic of	5	0.3%
22	Pakistan	4	0.3%
23	Mexico	4	0.3%
24	Italy	3	0.2%
25	Ireland	3	0.2%
26	Indonesia	3	0.2%
27	Denmark	3	0.2%
28	Egypt	3	0.2%
29	Israel	2	0.1%
30	Czech Republic	2	0.1%
31	Argentina	2	0.1%
32	Bulgaria	2	0.1%
33	Turkey	2	0.1%
34	Mongolia	2	0.1%
35	Philippines	2	0.1%
36	Portugal	1	0.1%
37	Ukraine	1	0.1%
38	Serbia	1	0.1%
39	Bangladesh	1	0.1%
40	Hong Kong	1	0.1%