Rank	Countries/Territories	Count	Percent
1	United States	276	36.1%
2	China	202	26.4%
3	Germany	100	13.1%
4	India	49	6.4%
5	Japan	17	2.2%
6	Canada	11	1.4%
7	Netherlands	10	1.3%
8	Korea, Republic of	9	1.2%
9	Australia	8	1%
10	Cyprus	7	0.9%
11	France	7	0.9%
12	Ecuador	7	0.9%
13	Singapore	7	0.9%
14	Taiwan	6	0.8%
15	United Kingdom	6	0.8%
16	South Africa	4	0.5%
17	Switzerland	4	0.5%
18	Ireland	4	0.5%
19	Hong Kong	3	0.4%
20	Malaysia	2	0.3%
21	Pakistan	2	0.3%
22	Russia	2	0.3%
23	Thailand	2	0.3%
24	Italy	2	0.3%
25	Indonesia	2	0.3%
26	Iran, Islamic Republic of	2	0.3%
27	Greece	2	0.3%
28	Egypt	2	0.3%
29	Brazil	2	0.3%
30	Denmark	1	0.1%
31	Guatemala	1	0.1%
32	Luxembourg	1	0.1%
33	Viet Nam	1	0.1%
34	Philippines	1	0.1%
35	Portugal	1	0.1%
36	Oman	1	0.1%