Rank	Countries/Territories	Count	Percent
1	United States	573	27.9%
2	China	275	13.4%
3	Japan	213	10.4%
4	Netherlands	118	5.7%
5	Germany	110	5.4%
6	Singapore	96	4.7%
7	Brazil	81	3.9%
8	United Kingdom	73	3.6%
9	India	55	2.7%
10	Canada	53	2.6%
11	Russia	45	2.2%
12	Australia	38	1.8%
13	Italy	38	1.8%
14	Spain	26	1.3%
15	France	20	1%
16	Ireland	17	0.8%
17	Poland	16	0.8%
18	Sweden	15	0.7%
19	Taiwan	14	0.7%
20	Iran, Islamic Republic of	14	0.7%
21	Korea, Republic of	10	0.5%
22	Nepal	9	0.4%
23	Denmark	9	0.4%
24	New Zealand	9	0.4%
25	Ukraine	9	0.4%
26	Austria	8	0.4%
27	Guam	8	0.4%
28	Israel	7	0.3%
29	Chile	7	0.3%
30	Norway	7	0.3%
31	Turkey	7	0.3%
32	Switzerland	7	0.3%
33	Romania	6	0.3%
34	Philippines	5	0.2%
35	Portugal	5	0.2%
36	Ecuador	5	0.2%
37	Greece	5	0.2%
38	Hong Kong	5	0.2%
39	Mexico	4	0.2%
40	Belgium	4	0.2%
41	Malaysia	3	0.1%
42	Puerto Rico	3	0.1%
43	Venezuela, Bolivarian Republic of	2	0.1%
44	Malta	2	0.1%
45	Luxembourg	2	0.1%
46	Indonesia	2	0.1%
47	Colombia	2	0.1%
48	Finland	2	0.1%
49	Albania	1	0%
50	Estonia	1	0%
51	Cyprus	1	0%
52	Czech Republic	1	0%
53	Bulgaria	1	0%
54	Hungary	1	0%
55	Lebanon	1	0%
56	Pakistan	1	0%
57	Nigeria	1	0%
58	Slovenia	1	0%
59	Tanzania, United Republic of	1	0%