Rank	Countries/Territories	Count	Percent
1	United States	543	38.3%
2	China	453	31.9%
3	Germany	88	6.2%
4	Canada	45	3.2%
5	France	33	2.3%
6	Russia	26	1.8%
7	Japan	24	1.7%
8	Korea, Republic of	21	1.5%
9	India	20	1.4%
10	Ireland	18	1.3%
11	Netherlands	18	1.3%
12	Singapore	15	1.1%
13	Australia	15	1.1%
14	United Kingdom	9	0.6%
15	Venezuela, Bolivarian Republic of	7	0.5%
16	Cyprus	7	0.5%
17	Romania	7	0.5%
18	Nigeria	7	0.5%
19	Viet Nam	6	0.4%
20	Turkey	5	0.4%
21	Ecuador	5	0.4%
22	Brazil	5	0.4%
23	Egypt	4	0.3%
24	Peru	4	0.3%
25	Hong Kong	3	0.2%
26	Italy	3	0.2%
27	Mexico	3	0.2%
28	Argentina	3	0.2%
29	Indonesia	2	0.1%
30	Iran, Islamic Republic of	2	0.1%
31	Bulgaria	2	0.1%
32	Thailand	2	0.1%
33	South Africa	2	0.1%
34	Spain	2	0.1%
35	Philippines	2	0.1%
36	Norway	1	0.1%
37	Lithuania	1	0.1%
38	Sweden	1	0.1%
39	Sint Maarten (Dutch Part)	1	0.1%
40	Chile	1	0.1%
41	Israel	1	0.1%
42	Guatemala	1	0.1%