Rank	Countries/Territories	Count	Percent
1	United States	479	37%
2	China	324	25%
3	Germany	90	7%
4	Canada	33	2.6%
5	France	32	2.5%
6	Korea, Republic of	31	2.4%
7	Singapore	31	2.4%
8	India	30	2.3%
9	Japan	28	2.2%
10	United Kingdom	26	2%
11	Netherlands	17	1.3%
12	Australia	12	0.9%
13	Brazil	11	0.9%
14	Ukraine	11	0.9%
15	Russia	10	0.8%
16	Algeria	10	0.8%
17	Pakistan	10	0.8%
18	Italy	9	0.7%
19	Cyprus	8	0.6%
20	Greece	7	0.5%
21	New Zealand	7	0.5%
22	Iran, Islamic Republic of	6	0.5%
23	Peru	6	0.5%
24	Thailand	6	0.5%
25	Turkey	6	0.5%
26	Indonesia	5	0.4%
27	Malaysia	5	0.4%
28	Egypt	5	0.4%
29	Ireland	4	0.3%
30	Ethiopia	3	0.2%
31	Hong Kong	3	0.2%
32	Bangladesh	3	0.2%
33	South Africa	3	0.2%
34	Taiwan	3	0.2%
35	Philippines	2	0.2%
36	Viet Nam	2	0.2%
37	Ghana	2	0.2%
38	Ecuador	2	0.2%
39	Israel	2	0.2%
40	Kazakhstan	1	0.1%
41	Mongolia	1	0.1%
42	Nepal	1	0.1%
43	Nigeria	1	0.1%
44	Palestine, State of	1	0.1%
45	Cameroon	1	0.1%
46	Argentina	1	0.1%
47	Austria	1	0.1%
48	Slovenia	1	0.1%
49	Uganda	1	0.1%