Rank	Countries/Territories	Count	Percent
1	United States	663	49.4%
2	China	360	26.8%
3	Japan	58	4.3%
4	Germany	41	3.1%
5	India	37	2.8%
6	Brazil	25	1.9%
7	Romania	17	1.3%
8	Russia	12	0.9%
9	Netherlands	12	0.9%
10	Turkey	12	0.9%
11	Singapore	10	0.7%
12	Canada	10	0.7%
13	Australia	8	0.6%
14	Ireland	8	0.6%
15	France	8	0.6%
16	Israel	7	0.5%
17	Taiwan	7	0.5%
18	Korea, Republic of	7	0.5%
19	Austria	6	0.4%
20	Spain	5	0.4%
21	Norway	3	0.2%
22	Czech Republic	3	0.2%
23	United Kingdom	3	0.2%
24	Switzerland	2	0.1%
25	Georgia	2	0.1%
26	Hong Kong	2	0.1%
27	Slovakia	2	0.1%
28	Ukraine	2	0.1%
29	Tunisia	1	0.1%
30	Sweden	1	0.1%
31	Lebanon	1	0.1%
32	Pakistan	1	0.1%
33	Portugal	1	0.1%
34	Italy	1	0.1%
35	Iran, Islamic Republic of	1	0.1%
36	Iraq	1	0.1%
37	Denmark	1	0.1%
38	Egypt	1	0.1%