Rank	Countries/Territories	Count	Percent
1	United States	216	25.9%
2	Germany	186	22.3%
3	China	184	22%
4	Singapore	59	7.1%
5	India	55	6.6%
6	Bulgaria	17	2%
7	Ireland	16	1.9%
8	Brazil	15	1.8%
9	Italy	11	1.3%
10	Japan	7	0.8%
11	Russia	7	0.8%
12	Korea, Republic of	6	0.7%
13	Turkey	6	0.7%
14	Israel	5	0.6%
15	Canada	4	0.5%
16	Spain	4	0.5%
17	Taiwan	4	0.5%
18	Australia	3	0.4%
19	Bangladesh	3	0.4%
20	Indonesia	3	0.4%
21	Colombia	3	0.4%
22	United Kingdom	3	0.4%
23	Hong Kong	2	0.2%
24	Belgium	2	0.2%
25	Ecuador	2	0.2%
26	Ukraine	2	0.2%
27	Mongolia	2	0.2%
28	Romania	1	0.1%
29	Mexico	1	0.1%
30	Viet Nam	1	0.1%
31	South Africa	1	0.1%
32	Egypt	1	0.1%
33	Finland	1	0.1%
34	France	1	0.1%
35	Denmark	1	0.1%