Rank	Countries/Territories	Count	Percent
1	United States	541	29.6%
2	China	432	23.7%
3	Germany	120	6.6%
4	Japan	56	3.1%
5	United Kingdom	56	3.1%
6	Russia	48	2.6%
7	Australia	41	2.2%
8	Netherlands	39	2.1%
9	Spain	32	1.8%
10	Brazil	32	1.8%
11	Ireland	30	1.6%
12	Israel	26	1.4%
13	Sweden	23	1.3%
14	India	22	1.2%
15	Mexico	22	1.2%
16	Canada	20	1.1%
17	Poland	19	1%
18	Hong Kong	18	1%
19	France	16	0.9%
20	Hungary	15	0.8%
21	Italy	14	0.8%
22	Malaysia	14	0.8%
23	Korea, Republic of	14	0.8%
24	Cuba	14	0.8%
25	Singapore	13	0.7%
26	Turkey	13	0.7%
27	Taiwan	12	0.7%
28	Belgium	10	0.5%
29	Morocco	9	0.5%
30	Greece	8	0.4%
31	Cyprus	7	0.4%
32	Iran, Islamic Republic of	7	0.4%
33	Thailand	7	0.4%
34	Saudi Arabia	6	0.3%
35	Czech Republic	6	0.3%
36	Austria	6	0.3%
37	Romania	5	0.3%
38	Portugal	4	0.2%
39	Ecuador	4	0.2%
40	Lithuania	4	0.2%
41	Iraq	3	0.2%
42	Peru	3	0.2%
43	South Africa	3	0.2%
44	Serbia	2	0.1%
45	Norway	2	0.1%
46	Ukraine	2	0.1%
47	United Arab Emirates	2	0.1%
48	Viet Nam	2	0.1%
49	Iceland	2	0.1%
50	Indonesia	2	0.1%
51	Kenya	2	0.1%
52	Egypt	2	0.1%
53	Algeria	2	0.1%
54	Bulgaria	2	0.1%
55	Colombia	2	0.1%
56	Mongolia	1	0.1%
57	Kazakhstan	1	0.1%
58	Paraguay	1	0.1%
59	New Zealand	1	0.1%
60	Puerto Rico	1	0.1%
61	Slovakia	1	0.1%
62	Switzerland	1	0.1%