Rank	Countries/Territories	Count	Percent
1	United States	194	30.9%
2	China	192	30.6%
3	Germany	37	5.9%
4	Japan	35	5.6%
5	United Kingdom	24	3.8%
6	Singapore	12	1.9%
7	Netherlands	12	1.9%
8	Australia	11	1.8%
9	Canada	7	1.1%
10	Ireland	6	1%
11	Italy	6	1%
12	Bulgaria	6	1%
13	Latvia	6	1%
14	Brazil	5	0.8%
15	Hong Kong	4	0.6%
16	India	4	0.6%
17	Colombia	4	0.6%
18	Cyprus	4	0.6%
19	Mexico	4	0.6%
20	Sweden	4	0.6%
21	Switzerland	3	0.5%
22	Taiwan	3	0.5%
23	Portugal	3	0.5%
24	Mauritius	3	0.5%
25	Egypt	3	0.5%
26	France	3	0.5%
27	South Africa	3	0.5%
28	Spain	3	0.5%
29	Venezuela, Bolivarian Republic of	2	0.3%
30	Viet Nam	2	0.3%
31	Iran, Islamic Republic of	2	0.3%
32	Kazakhstan	2	0.3%
33	Moldova, Republic of	2	0.3%
34	Mongolia	2	0.3%
35	Nigeria	2	0.3%
36	Peru	2	0.3%
37	Philippines	2	0.3%
38	Thailand	2	0.3%
39	Turkey	1	0.2%
40	Uganda	1	0.2%
41	Russia	1	0.2%
42	Norway	1	0.2%
43	Cameroon	1	0.2%
44	Bangladesh	1	0.2%