Rank	Countries/Territories	Count	Percent
1	United States	290	34.1%
2	China	161	18.9%
3	Germany	54	6.3%
4	Canada	31	3.6%
5	Netherlands	31	3.6%
6	India	29	3.4%
7	Ireland	28	3.3%
8	United Kingdom	28	3.3%
9	Japan	26	3.1%
10	Australia	17	2%
11	Russia	15	1.8%
12	France	13	1.5%
13	Romania	11	1.3%
14	Italy	9	1.1%
15	Hong Kong	8	0.9%
16	Sweden	8	0.9%
17	Switzerland	8	0.9%
18	Singapore	7	0.8%
19	Iraq	7	0.8%
20	Poland	7	0.8%
21	Philippines	6	0.7%
22	Taiwan	6	0.7%
23	Turkey	5	0.6%
24	Iran, Islamic Republic of	5	0.6%
25	Egypt	4	0.5%
26	Belgium	3	0.4%
27	Brazil	3	0.4%
28	Ghana	3	0.4%
29	Greece	2	0.2%
30	Jamaica	2	0.2%
31	Cyprus	2	0.2%
32	Portugal	2	0.2%
33	Puerto Rico	2	0.2%
34	Spain	2	0.2%
35	Nigeria	2	0.2%
36	Tanzania, United Republic of	2	0.2%
37	Pakistan	1	0.1%
38	New Zealand	1	0.1%
39	Kazakhstan	1	0.1%
40	Korea, Republic of	1	0.1%
41	Lithuania	1	0.1%
42	Malaysia	1	0.1%
43	Mexico	1	0.1%
44	Morocco	1	0.1%
45	Saudi Arabia	1	0.1%
46	Denmark	1	0.1%
47	Ethiopia	1	0.1%
48	Indonesia	1	0.1%