Rank	Countries/Territories	Count	Percent
1	United States	413	35.3%
2	China	181	15.5%
3	Germany	99	8.5%
4	Japan	80	6.8%
5	India	48	4.1%
6	Australia	35	3%
7	Canada	31	2.7%
8	Taiwan	27	2.3%
9	Netherlands	20	1.7%
10	Hong Kong	18	1.5%
11	Korea, Republic of	16	1.4%
12	Ireland	14	1.2%
13	Iran, Islamic Republic of	14	1.2%
14	Russia	13	1.1%
15	Turkey	11	0.9%
16	France	11	0.9%
17	Malaysia	10	0.9%
18	Romania	10	0.9%
19	Indonesia	8	0.7%
20	Israel	8	0.7%
21	Mauritius	6	0.5%
22	Peru	6	0.5%
23	Ukraine	6	0.5%
24	United Kingdom	6	0.5%
25	Singapore	5	0.4%
26	Cyprus	5	0.4%
27	Egypt	4	0.3%
28	Ghana	4	0.3%
29	Argentina	4	0.3%
30	Brazil	4	0.3%
31	South Africa	4	0.3%
32	Sri Lanka	4	0.3%
33	Serbia	4	0.3%
34	Zambia	4	0.3%
35	Sweden	3	0.3%
36	Thailand	3	0.3%
37	Nigeria	3	0.3%
38	Norway	3	0.3%
39	Iraq	2	0.2%
40	Bangladesh	2	0.2%
41	Czech Republic	2	0.2%
42	Denmark	2	0.2%
43	Viet Nam	2	0.2%
44	Portugal	2	0.2%
45	Poland	1	0.1%
46	Spain	1	0.1%
47	Senegal	1	0.1%
48	Tunisia	1	0.1%
49	Switzerland	1	0.1%
50	Belgium	1	0.1%
51	Azerbaijan	1	0.1%
52	Colombia	1	0.1%
53	Lithuania	1	0.1%
54	Palestine, State of	1	0.1%
55	Mexico	1	0.1%
56	Namibia	1	0.1%