Rank	Countries/Territories	Count	Percent
1	United States	493	46.8%
2	China	171	16.2%
3	Germany	93	8.8%
4	Japan	85	8.1%
5	Canada	34	3.2%
6	Korea, Republic of	29	2.8%
7	Singapore	20	1.9%
8	United Kingdom	19	1.8%
9	Spain	13	1.2%
10	India	11	1%
11	Netherlands	10	0.9%
12	Hong Kong	8	0.8%
13	Argentina	6	0.6%
14	Ireland	5	0.5%
15	Israel	5	0.5%
16	Taiwan	5	0.5%
17	Ukraine	4	0.4%
18	Australia	4	0.4%
19	Brazil	4	0.4%
20	France	4	0.4%
21	Denmark	3	0.3%
22	Egypt	3	0.3%
23	Romania	3	0.3%
24	Russia	2	0.2%
25	Serbia	2	0.2%
26	Norway	2	0.2%
27	Latvia	2	0.2%
28	Portugal	2	0.2%
29	Italy	2	0.2%
30	Iran, Islamic Republic of	1	0.1%
31	Greece	1	0.1%
32	Georgia	1	0.1%
33	Croatia	1	0.1%
34	Cyprus	1	0.1%
35	Lebanon	1	0.1%
36	Libya	1	0.1%
37	Malaysia	1	0.1%
38	Philippines	1	0.1%