Rank	Countries/Territories	Count	Percent
1	United States	426	35.7%
2	China	339	28.4%
3	Bulgaria	104	8.7%
4	Germany	77	6.5%
5	Singapore	31	2.6%
6	Russia	25	2.1%
7	Japan	22	1.8%
8	India	18	1.5%
9	France	14	1.2%
10	Spain	12	1%
11	Korea, Republic of	10	0.8%
12	Israel	7	0.6%
13	Canada	7	0.6%
14	Taiwan	7	0.6%
15	Thailand	7	0.6%
16	United Kingdom	7	0.6%
17	Hong Kong	6	0.5%
18	Netherlands	6	0.5%
19	Italy	5	0.4%
20	Turkey	5	0.4%
21	Sri Lanka	4	0.3%
22	Norway	4	0.3%
23	Greece	4	0.3%
24	Australia	4	0.3%
25	Poland	3	0.3%
26	Serbia	3	0.3%
27	Romania	2	0.2%
28	Sweden	2	0.2%
29	South Africa	2	0.2%
30	Viet Nam	2	0.2%
31	Saudi Arabia	2	0.2%
32	Pakistan	2	0.2%
33	Peru	2	0.2%
34	Egypt	2	0.2%
35	Mexico	2	0.2%
36	Croatia	2	0.2%
37	Cyprus	2	0.2%
38	Iran, Islamic Republic of	2	0.2%
39	Ireland	1	0.1%
40	Hungary	1	0.1%
41	Gambia	1	0.1%
42	Ecuador	1	0.1%
43	Bangladesh	1	0.1%
44	Chile	1	0.1%
45	Lebanon	1	0.1%
46	Lithuania	1	0.1%
47	North Macedonia	1	0.1%
48	Portugal	1	0.1%
49	Slovakia	1	0.1%