Rank	Countries/Territories	Count	Percent
1	United States	459	41.7%
2	China	196	17.8%
3	Germany	56	5.1%
4	Canada	36	3.3%
5	India	34	3.1%
6	Hungary	28	2.5%
7	Italy	24	2.2%
8	Korea, Republic of	22	2%
9	Cuba	19	1.7%
10	Japan	17	1.5%
11	Netherlands	17	1.5%
12	United Kingdom	16	1.5%
13	France	12	1.1%
14	Singapore	11	1%
15	Australia	10	0.9%
16	South Africa	9	0.8%
17	Russia	8	0.7%
18	Mexico	8	0.7%
19	Cyprus	7	0.6%
20	Ecuador	7	0.6%
21	Taiwan	7	0.6%
22	Switzerland	6	0.5%
23	Viet Nam	5	0.5%
24	Spain	5	0.5%
25	Argentina	5	0.5%
26	Brazil	5	0.5%
27	Morocco	5	0.5%
28	Lebanon	5	0.5%
29	Malaysia	5	0.5%
30	Ireland	4	0.4%
31	Chile	4	0.4%
32	Israel	3	0.3%
33	Hong Kong	3	0.3%
34	Turkey	3	0.3%
35	Serbia	3	0.3%
36	Pakistan	3	0.3%
37	Peru	2	0.2%
38	Romania	2	0.2%
39	Saudi Arabia	2	0.2%
40	Thailand	2	0.2%
41	Sri Lanka	2	0.2%
42	Venezuela, Bolivarian Republic of	2	0.2%
43	Nigeria	2	0.2%
44	Norway	2	0.2%
45	Algeria	2	0.2%
46	Egypt	2	0.2%
47	Estonia	2	0.2%
48	Belgium	2	0.2%
49	Greece	2	0.2%
50	Austria	1	0.1%
51	Bulgaria	1	0.1%
52	New Zealand	1	0.1%
53	Malta	1	0.1%
54	Ukraine	1	0.1%
55	Philippines	1	0.1%
56	Portugal	1	0.1%