Rank	Countries/Territories	Count	Percent
1	United States	580	30.6%
2	Singapore	378	19.9%
3	China	332	17.5%
4	Germany	123	6.5%
5	India	115	6.1%
6	Russia	38	2%
7	Canada	33	1.7%
8	Netherlands	22	1.2%
9	Australia	20	1.1%
10	Italy	17	0.9%
11	United Kingdom	17	0.9%
12	Korea, Republic of	16	0.8%
13	Japan	14	0.7%
14	Ireland	13	0.7%
15	Ethiopia	13	0.7%
16	Colombia	12	0.6%
17	Latvia	12	0.6%
18	Brazil	11	0.6%
19	Greece	11	0.6%
20	France	10	0.5%
21	Iran, Islamic Republic of	9	0.5%
22	Pakistan	7	0.4%
23	Hong Kong	7	0.4%
24	Mexico	4	0.2%
25	Kazakhstan	4	0.2%
26	Ukraine	4	0.2%
27	Saudi Arabia	4	0.2%
28	Romania	4	0.2%
29	Paraguay	4	0.2%
30	Slovenia	4	0.2%
31	Sweden	4	0.2%
32	South Africa	3	0.2%
33	Philippines	3	0.2%
34	Nepal	3	0.2%
35	Malaysia	3	0.2%
36	Israel	3	0.2%
37	Hungary	3	0.2%
38	Cyprus	3	0.2%
39	Dominican Republic	3	0.2%
40	Argentina	3	0.2%
41	Bahrain	2	0.1%
42	Indonesia	2	0.1%
43	Palestine, State of	2	0.1%
44	Portugal	2	0.1%
45	Peru	2	0.1%
46	Spain	2	0.1%
47	Slovakia	2	0.1%
48	Switzerland	2	0.1%
49	Taiwan	2	0.1%
50	Viet Nam	2	0.1%
51	Thailand	1	0.1%
52	Mongolia	1	0.1%
53	Jordan	1	0.1%
54	Bangladesh	1	0.1%
55	Belarus	1	0.1%
56	Belgium	1	0.1%
57	Costa Rica	1	0.1%
58	Egypt	1	0.1%
59	Finland	1	0.1%