Rank	Countries/Territories	Count	Percent
1	United States	740	43.5%
2	China	399	23.5%
3	Germany	218	12.8%
4	Korea, Republic of	38	2.2%
5	France	36	2.1%
6	Japan	23	1.4%
7	India	22	1.3%
8	Canada	21	1.2%
9	Taiwan	18	1.1%
10	Ukraine	17	1%
11	United Kingdom	17	1%
12	Netherlands	17	1%
13	Switzerland	14	0.8%
14	Australia	13	0.8%
15	Iran, Islamic Republic of	11	0.6%
16	Singapore	8	0.5%
17	Indonesia	7	0.4%
18	Brazil	7	0.4%
19	Turkey	6	0.4%
20	Hong Kong	5	0.3%
21	Norway	5	0.3%
22	Portugal	4	0.2%
23	Russia	4	0.2%
24	Saudi Arabia	4	0.2%
25	Cyprus	4	0.2%
26	Argentina	3	0.2%
27	Philippines	3	0.2%
28	New Zealand	3	0.2%
29	Malaysia	3	0.2%
30	Italy	3	0.2%
31	Mongolia	3	0.2%
32	Puerto Rico	2	0.1%
33	Cambodia	2	0.1%
34	Austria	2	0.1%
35	Hungary	2	0.1%
36	Finland	2	0.1%
37	Spain	2	0.1%
38	Trinidad and Tobago	2	0.1%
39	Sweden	1	0.1%
40	Iraq	1	0.1%
41	Israel	1	0.1%
42	Belgium	1	0.1%
43	Dominican Republic	1	0.1%
44	Qatar	1	0.1%
45	Nigeria	1	0.1%
46	Mexico	1	0.1%
47	Kenya	1	0.1%
48	Lebanon	1	0.1%
49	Lithuania	1	0.1%