Rank	Countries/Territories	Count	Percent
1	United States	507	38.5%
2	China	327	24.8%
3	Germany	158	12%
4	France	55	4.2%
5	Australia	45	3.4%
6	Latvia	36	2.7%
7	India	24	1.8%
8	Japan	16	1.2%
9	Canada	15	1.1%
10	Korea, Republic of	9	0.7%
11	Singapore	9	0.7%
12	United Kingdom	9	0.7%
13	Netherlands	8	0.6%
14	Egypt	8	0.6%
15	Cyprus	7	0.5%
16	Romania	7	0.5%
17	Taiwan	6	0.5%
18	Viet Nam	5	0.4%
19	Brazil	5	0.4%
20	Bulgaria	5	0.4%
21	Indonesia	5	0.4%
22	Ireland	4	0.3%
23	Switzerland	4	0.3%
24	Norway	4	0.3%
25	Malaysia	4	0.3%
26	Thailand	4	0.3%
27	Spain	3	0.2%
28	Qatar	3	0.2%
29	Argentina	3	0.2%
30	Israel	2	0.2%
31	Italy	2	0.2%
32	Hong Kong	2	0.2%
33	Portugal	2	0.2%
34	Slovenia	2	0.2%
35	Mexico	2	0.2%
36	Mongolia	2	0.2%
37	Ukraine	2	0.2%
38	Turkey	1	0.1%
39	Philippines	1	0.1%
40	Nigeria	1	0.1%
41	Iran, Islamic Republic of	1	0.1%
42	Ghana	1	0.1%
43	Guatemala	1	0.1%
44	Denmark	1	0.1%