Rank	Countries/Territories	Count	Percent
1	United States	669	47.1%
2	China	218	15.4%
3	Germany	76	5.4%
4	India	71	5%
5	Canada	60	4.2%
6	Netherlands	40	2.8%
7	Singapore	37	2.6%
8	France	33	2.3%
9	Ireland	28	2%
10	United Kingdom	19	1.3%
11	Australia	14	1%
12	Russia	14	1%
13	Japan	11	0.8%
14	Portugal	10	0.7%
15	Israel	10	0.7%
16	Sweden	10	0.7%
17	Romania	9	0.6%
18	Italy	9	0.6%
19	Hong Kong	9	0.6%
20	Argentina	7	0.5%
21	Viet Nam	6	0.4%
22	Brazil	5	0.4%
23	Cyprus	5	0.4%
24	Korea, Republic of	5	0.4%
25	Mexico	4	0.3%
26	Saudi Arabia	4	0.3%
27	Ukraine	4	0.3%
28	Thailand	4	0.3%
29	Norway	3	0.2%
30	Philippines	2	0.1%
31	New Zealand	2	0.1%
32	Kazakhstan	2	0.1%
33	Spain	2	0.1%
34	Switzerland	2	0.1%
35	Turkey	1	0.1%
36	Lao People's Democratic Republic	1	0.1%
37	Malaysia	1	0.1%
38	Mongolia	1	0.1%
39	Poland	1	0.1%
40	Puerto Rico	1	0.1%
41	Qatar	1	0.1%
42	Serbia	1	0.1%
43	Slovakia	1	0.1%
44	Hungary	1	0.1%
45	Iran, Islamic Republic of	1	0.1%
46	Colombia	1	0.1%
47	Croatia	1	0.1%
48	Algeria	1	0.1%
49	Belgium	1	0.1%