Rank	Countries/Territories	Count	Percent
1	United States	546	45.7%
2	China	277	23.2%
3	Germany	63	5.3%
4	India	53	4.4%
5	Japan	42	3.5%
6	Russia	37	3.1%
7	Canada	28	2.3%
8	Ireland	15	1.3%
9	Brazil	15	1.3%
10	Hong Kong	13	1.1%
11	Korea, Republic of	13	1.1%
12	Netherlands	11	0.9%
13	Italy	10	0.8%
14	Australia	9	0.8%
15	Indonesia	6	0.5%
16	France	4	0.3%
17	Mexico	4	0.3%
18	Portugal	4	0.3%
19	United Kingdom	4	0.3%
20	Turkey	3	0.3%
21	Spain	3	0.3%
22	Iran, Islamic Republic of	3	0.3%
23	Cyprus	3	0.3%
24	Austria	3	0.3%
25	Albania	2	0.2%
26	Israel	2	0.2%
27	Romania	2	0.2%
28	Mongolia	2	0.2%
29	Philippines	2	0.2%
30	Ukraine	2	0.2%
31	Uganda	1	0.1%
32	Montenegro	1	0.1%
33	Kyrgyzstan	1	0.1%
34	Malaysia	1	0.1%
35	Norway	1	0.1%
36	Switzerland	1	0.1%
37	Taiwan	1	0.1%
38	Saudi Arabia	1	0.1%
39	Singapore	1	0.1%
40	Argentina	1	0.1%
41	Armenia	1	0.1%
42	Bulgaria	1	0.1%
43	Colombia	1	0.1%