Rank	Countries/Territories	Count	Percent
1	United States	422	44.6%
2	China	210	22.2%
3	Germany	100	10.6%
4	Japan	23	2.4%
5	Canada	23	2.4%
6		22	2.3%
7	France	21	2.2%
8	Singapore	15	1.6%
9	India	13	1.4%
10	Netherlands	12	1.3%
11	Korea, Republic of	11	1.2%
12	Australia	9	1%
13	Switzerland	9	1%
14	Cyprus	8	0.8%
15	Norway	6	0.6%
16	Italy	5	0.5%
17	Latvia	5	0.5%
18	Hong Kong	5	0.5%
19	Egypt	4	0.4%
20	United Kingdom	4	0.4%
21	Russia	3	0.3%
22	Argentina	3	0.3%
23	Iran, Islamic Republic of	2	0.2%
24	Ukraine	2	0.2%
25	Viet Nam	2	0.2%
26	Taiwan	1	0.1%
27	Pakistan	1	0.1%
28	Ireland	1	0.1%
29	Lithuania	1	0.1%
30	Malaysia	1	0.1%
31	Mongolia	1	0.1%
32	Bangladesh	1	0.1%
33	Bulgaria	1	0.1%