Rank	Countries/Territories	Count	Percent
1	United States	301	37.2%
2	China	270	33.3%
3	Germany	53	6.5%
4	India	31	3.8%
5		20	2.5%
6	Japan	20	2.5%
7	Brazil	13	1.6%
8	Israel	12	1.5%
9	Russia	11	1.4%
10	Hong Kong	10	1.2%
11	Ireland	9	1.1%
12	Korea, Republic of	9	1.1%
13	Thailand	6	0.7%
14	France	6	0.7%
15	Canada	6	0.7%
16	Egypt	5	0.6%
17	Singapore	5	0.6%
18	Australia	4	0.5%
19	Taiwan	3	0.4%
20	Viet Nam	2	0.2%
21	Spain	2	0.2%
22	Netherlands	2	0.2%
23	Belgium	2	0.2%
24	Denmark	2	0.2%
25	Argentina	1	0.1%
26	Finland	1	0.1%
27	Norway	1	0.1%
28	Mongolia	1	0.1%
29	Saudi Arabia	1	0.1%
30	Tanzania, United Republic of	1	0.1%