Rank	Countries/Territories	Count	Percent
1	United States	506	46.5%
2	China	195	17.9%
3	Germany	122	11.2%
4	France	65	6%
5	Japan	47	4.3%
6	Sweden	19	1.7%
7	Singapore	19	1.7%
8	United Kingdom	18	1.7%
9	Netherlands	17	1.6%
10	Canada	16	1.5%
11	Korea, Republic of	6	0.6%
12	India	6	0.6%
13	Iran, Islamic Republic of	6	0.6%
14	Cyprus	4	0.4%
15	Australia	4	0.4%
16	Brazil	4	0.4%
17	Italy	4	0.4%
18	Russia	4	0.4%
19	Spain	3	0.3%
20	Viet Nam	3	0.3%
21	Argentina	3	0.3%
22	Ecuador	2	0.2%
23	Finland	2	0.2%
24	Hong Kong	2	0.2%
25	Serbia	2	0.2%
26	Poland	2	0.2%
27	Pakistan	2	0.2%
28	Philippines	1	0.1%
29	Saudi Arabia	1	0.1%
30	Israel	1	0.1%
31	Mexico	1	0.1%
32	Denmark	1	0.1%
33	Belgium	1	0.1%