Rank	Countries/Territories	Count	Percent
1	United States	577	50.8%
2	China	257	22.6%
3	Germany	128	11.3%
4	India	36	3.2%
5	Japan	16	1.4%
6	Taiwan	13	1.1%
7	Netherlands	11	1%
8	Czech Republic	10	0.9%
9	Korea, Republic of	9	0.8%
10	Russia	7	0.6%
11	United Kingdom	7	0.6%
12	Singapore	7	0.6%
13	Cyprus	7	0.6%
14	Canada	6	0.5%
15	France	6	0.5%
16	Turkey	4	0.4%
17	Switzerland	3	0.3%
18	Australia	3	0.3%
19	Belgium	3	0.3%
20	Iran, Islamic Republic of	3	0.3%
21	Ireland	3	0.3%
22	Italy	3	0.3%
23	Hong Kong	3	0.3%
24	Spain	2	0.2%
25	Poland	2	0.2%
26	Malta	2	0.2%
27	Norway	1	0.1%
28	Philippines	1	0.1%
29	Qatar	1	0.1%
30	Serbia	1	0.1%
31	Hungary	1	0.1%
32	Greece	1	0.1%
33	Argentina	1	0.1%
34	Finland	1	0.1%