Rank	Countries/Territories	Count	Percent
1	United States	503	39.3%
2	China	303	23.7%
3	Germany	158	12.4%
4	France	53	4.1%
5	Australia	45	3.5%
6	Latvia	36	2.8%
7	India	24	1.9%
8	Japan	16	1.3%
9	Canada	15	1.2%
10	Korea, Republic of	9	0.7%
11	Singapore	9	0.7%
12	Egypt	8	0.6%
13	United Kingdom	8	0.6%
14	Cyprus	7	0.5%
15	Romania	7	0.5%
16	Taiwan	6	0.5%
17	Netherlands	6	0.5%
18	Brazil	5	0.4%
19	Bulgaria	5	0.4%
20	Indonesia	5	0.4%
21	Viet Nam	5	0.4%
22	Ireland	4	0.3%
23	Malaysia	4	0.3%
24	Thailand	4	0.3%
25	Switzerland	4	0.3%
26	Spain	3	0.2%
27	Qatar	3	0.2%
28	Argentina	3	0.2%
29	Israel	2	0.2%
30	Italy	2	0.2%
31	Hong Kong	2	0.2%
32	Mexico	2	0.2%
33	Mongolia	2	0.2%
34	Norway	2	0.2%
35	Ukraine	2	0.2%
36	Philippines	1	0.1%
37	Nigeria	1	0.1%
38	Turkey	1	0.1%
39	Iran, Islamic Republic of	1	0.1%
40	Ghana	1	0.1%
41	Guatemala	1	0.1%
42	Denmark	1	0.1%