Rank	Countries/Territories	Count	Percent
1	United States	749	48.4%
2	China	452	29.2%
3	Japan	59	3.8%
4	Germany	53	3.4%
5	India	42	2.7%
6	Brazil	28	1.8%
7	Romania	17	1.1%
8	Russia	13	0.8%
9	Netherlands	12	0.8%
10	Turkey	12	0.8%
11	Singapore	11	0.7%
12	France	11	0.7%
13	Canada	10	0.6%
14	Australia	8	0.5%
15	Ireland	8	0.5%
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	0.3%
21	Hong Kong	4	0.3%
22	Czech Republic	3	0.2%
23	Norway	3	0.2%
24	United Kingdom	3	0.2%
25	Switzerland	2	0.1%
26	Slovakia	2	0.1%
27	Ukraine	2	0.1%
28	Georgia	2	0.1%
29	Italy	1	0.1%
30	Iran, Islamic Republic of	1	0.1%
31	Iraq	1	0.1%
32	Denmark	1	0.1%
33	Egypt	1	0.1%
34	Tunisia	1	0.1%
35	Sweden	1	0.1%
36	Lebanon	1	0.1%
37	Pakistan	1	0.1%
38	Portugal	1	0.1%