Rank	Countries/Territories	Count	Percent
1	United States	149	29.2%
2	China	108	21.1%
3	Germany	22	4.3%
4	India	20	3.9%
5	Korea, Republic of	20	3.9%
6	United Kingdom	18	3.5%
7	Netherlands	13	2.5%
8	Japan	12	2.3%
9	Australia	12	2.3%
10	Singapore	10	2%
11	Sri Lanka	8	1.6%
12	Belgium	7	1.4%
13	Egypt	6	1.2%
14	Ireland	6	1.2%
15	Mexico	6	1.2%
16	Taiwan	6	1.2%
17	Turkey	5	1%
18	France	5	1%
19	Algeria	5	1%
20	Bangladesh	4	0.8%
21	Czech Republic	4	0.8%
22	Italy	4	0.8%
23	Malaysia	3	0.6%
24	Israel	3	0.6%
25	Iceland	3	0.6%
26	Iran, Islamic Republic of	3	0.6%
27	Argentina	3	0.6%
28	Brazil	3	0.6%
29	Thailand	3	0.6%
30	Spain	3	0.6%
31	Philippines	3	0.6%
32	Romania	3	0.6%
33	Norway	2	0.4%
34	Sweden	2	0.4%
35	Viet Nam	2	0.4%
36	Canada	2	0.4%
37	Chile	2	0.4%
38	Denmark	2	0.4%
39	Colombia	2	0.4%
40	Estonia	2	0.4%
41	Indonesia	2	0.4%
42	Guatemala	2	0.4%
43	Hong Kong	1	0.2%
44	Greece	1	0.2%
45	Kazakhstan	1	0.2%
46	Bulgaria	1	0.2%
47	Austria	1	0.2%
48	Switzerland	1	0.2%
49	Ukraine	1	0.2%
50	Russia	1	0.2%
51	Saudi Arabia	1	0.2%
52	South Africa	1	0.2%
53	New Zealand	1	0.2%