Rank	Countries/Territories	Count	Percent
1	United States	557	35.5%
2	China	415	26.4%
3	Germany	139	8.9%
4	Japan	94	6%
5	Canada	31	2%
6	Spain	28	1.8%
7	United Kingdom	23	1.5%
8	Korea, Republic of	22	1.4%
9	France	21	1.3%
10	Netherlands	20	1.3%
11	Iran, Islamic Republic of	18	1.1%
12	Viet Nam	18	1.1%
13	Singapore	18	1.1%
14	Pakistan	15	1%
15	Taiwan	12	0.8%
16	Thailand	10	0.6%
17	Egypt	10	0.6%
18	Australia	10	0.6%
19	Indonesia	9	0.6%
20	Belgium	8	0.5%
21	Hong Kong	7	0.4%
22	Ireland	7	0.4%
23	Russia	6	0.4%
24	Bolivia, Plurinational State of	6	0.4%
25	Cyprus	6	0.4%
26	Turkey	6	0.4%
27	Mexico	5	0.3%
28	Serbia	4	0.3%
29	India	4	0.3%
30	Argentina	3	0.2%
31	Brazil	3	0.2%
32	Nigeria	3	0.2%
33	Macao	3	0.2%
34	Ukraine	3	0.2%
35	Romania	3	0.2%
36	South Africa	2	0.1%
37	Switzerland	2	0.1%
38	Latvia	2	0.1%
39	Italy	2	0.1%
40	Mongolia	2	0.1%
41	Philippines	2	0.1%
42	Poland	2	0.1%
43	Denmark	2	0.1%
44	Ecuador	2	0.1%
45	Bulgaria	1	0.1%
46	Chile	1	0.1%
47	Norway	1	0.1%
48	Iraq	1	0.1%
49	Malaysia	1	0.1%