Rank	Countries/Territories	Count	Percent
1	United States	520	34.8%
2	China	408	27.3%
3	Germany	218	14.6%
4	Bulgaria	58	3.9%
5	Singapore	57	3.8%
6	Netherlands	40	2.7%
7	India	27	1.8%
8	Canada	20	1.3%
9	France	19	1.3%
10	United Kingdom	12	0.8%
11	Pakistan	11	0.7%
12	Cyprus	10	0.7%
13	Turkey	9	0.6%
14	Nigeria	8	0.5%
15	Japan	8	0.5%
16	Australia	6	0.4%
17	Philippines	5	0.3%
18	Italy	5	0.3%
19	Iran, Islamic Republic of	4	0.3%
20	Egypt	4	0.3%
21	Ukraine	3	0.2%
22	Sweden	3	0.2%
23	Norway	2	0.1%
24	Thailand	2	0.1%
25	Saudi Arabia	2	0.1%
26	Senegal	2	0.1%
27	Ethiopia	2	0.1%
28	Bahrain	2	0.1%
29	Bolivia, Plurinational State of	2	0.1%
30	Colombia	2	0.1%
31	Argentina	2	0.1%
32	Malawi	2	0.1%
33	Mauritius	2	0.1%
34	Kenya	2	0.1%
35	Nepal	2	0.1%
36	Nicaragua	1	0.1%
37	Russia	1	0.1%
38	North Macedonia	1	0.1%
39	Korea, Republic of	1	0.1%
40	Lithuania	1	0.1%
41	Myanmar	1	0.1%
42	Brazil	1	0.1%
43	Georgia	1	0.1%
44	Indonesia	1	0.1%
45	Greece	1	0.1%
46	Hong Kong	1	0.1%
47	South Africa	1	0.1%
48	Sri Lanka	1	0.1%
49	Switzerland	1	0.1%
50	Taiwan	1	0.1%