Rank	Countries/Territories	Count	Percent
1	United States	337	34.8%
2	China	178	18.4%
3	Germany	85	8.8%
4	India	36	3.7%
5	Australia	33	3.4%
6	Netherlands	31	3.2%
7	United Kingdom	25	2.6%
8	Singapore	24	2.5%
9	Canada	18	1.9%
10	Japan	18	1.9%
11	Ireland	17	1.8%
12	France	17	1.8%
13	Russia	13	1.3%
14	Romania	11	1.1%
15	Indonesia	11	1.1%
16	South Africa	7	0.7%
17	Turkey	7	0.7%
18	Taiwan	6	0.6%
19	Philippines	6	0.6%
20	Korea, Republic of	6	0.6%
21	Malaysia	6	0.6%
22	Egypt	6	0.6%
23	Italy	5	0.5%
24	Poland	4	0.4%
25	Iran, Islamic Republic of	4	0.4%
26	Israel	4	0.4%
27	Hong Kong	3	0.3%
28	Czech Republic	3	0.3%
29	Switzerland	3	0.3%
30	United Arab Emirates	3	0.3%
31	Ukraine	2	0.2%
32	Viet Nam	2	0.2%
33	Portugal	2	0.2%
34	Pakistan	2	0.2%
35	Saudi Arabia	2	0.2%
36	Spain	2	0.2%
37	Sri Lanka	2	0.2%
38	Ethiopia	2	0.2%
39	Ghana	2	0.2%
40	Greece	2	0.2%
41	Chile	2	0.2%
42	Hungary	2	0.2%
43	Iraq	1	0.1%
44	Malta	1	0.1%
45	Lithuania	1	0.1%
46	Jordan	1	0.1%
47	Kazakhstan	1	0.1%
48	Kenya	1	0.1%
49	Costa Rica	1	0.1%
50	Cyprus	1	0.1%
51	Bahamas	1	0.1%
52	Bangladesh	1	0.1%
53	Belgium	1	0.1%
54	Bulgaria	1	0.1%
55	Georgia	1	0.1%
56	Denmark	1	0.1%
57	Thailand	1	0.1%
58	Palestine, State of	1	0.1%
59	New Zealand	1	0.1%
60	Nigeria	1	0.1%