Rank	Countries/Territories	Count	Percent
1	United States	420	43.8%
2	China	213	22.2%
3	Germany	74	7.7%
4	Canada	45	4.7%
5	India	31	3.2%
6	Singapore	23	2.4%
7	France	17	1.8%
8	Australia	14	1.5%
9	United Kingdom	12	1.3%
10	Japan	9	0.9%
11	Ireland	8	0.8%
12	Netherlands	8	0.8%
13	Russia	8	0.8%
14	Korea, Republic of	7	0.7%
15	Switzerland	7	0.7%
16	Poland	6	0.6%
17	Romania	5	0.5%
18	Spain	4	0.4%
19	Italy	4	0.4%
20	Cyprus	3	0.3%
21	Argentina	3	0.3%
22	Thailand	3	0.3%
23	Ukraine	2	0.2%
24	United Arab Emirates	2	0.2%
25	Finland	2	0.2%
26	Iran, Islamic Republic of	2	0.2%
27	Belgium	2	0.2%
28	Brazil	2	0.2%
29	Bulgaria	2	0.2%
30	Pakistan	2	0.2%
31	Peru	2	0.2%
32	Malaysia	2	0.2%
33	Saudi Arabia	2	0.2%
34	Nepal	2	0.2%
35	Puerto Rico	1	0.1%
36	Sweden	1	0.1%
37	Mexico	1	0.1%
38	Mongolia	1	0.1%
39	Luxembourg	1	0.1%
40	Chile	1	0.1%
41	Colombia	1	0.1%
42	Indonesia	1	0.1%
43	Egypt	1	0.1%
44	Taiwan	1	0.1%