Rank	Countries/Territories	Count	Percent
1	United States	568	43.8%
2	China	270	20.8%
3	Germany	172	13.3%
4	France	35	2.7%
5	Korea, Republic of	35	2.7%
6	India	20	1.5%
7	Japan	19	1.5%
8	Canada	17	1.3%
9	Ukraine	17	1.3%
10	United Kingdom	16	1.2%
11	Netherlands	16	1.2%
12	Switzerland	14	1.1%
13	Taiwan	11	0.8%
14	Iran, Islamic Republic of	8	0.6%
15	Indonesia	7	0.5%
16	Australia	6	0.5%
17	Turkey	6	0.5%
18	Hong Kong	5	0.4%
19	Norway	5	0.4%
20	Portugal	4	0.3%
21	Saudi Arabia	4	0.3%
22	Singapore	4	0.3%
23	Brazil	4	0.3%
24	Italy	3	0.2%
25	Philippines	3	0.2%
26	Malaysia	3	0.2%
27	Spain	2	0.2%
28	Puerto Rico	2	0.2%
29	Russia	2	0.2%
30	Trinidad and Tobago	2	0.2%
31	Hungary	2	0.2%
32	Cambodia	2	0.2%
33	Finland	2	0.2%
34	Cyprus	2	0.2%
35	Dominican Republic	1	0.1%
36	Belgium	1	0.1%
37	Israel	1	0.1%
38	Sweden	1	0.1%
39	Mexico	1	0.1%
40	Kenya	1	0.1%
41	Lebanon	1	0.1%
42	Lithuania	1	0.1%