Rank	Countries/Territories	Count	Percent
1	United States	270	34.8%
2	China	207	26.7%
3	Germany	52	6.7%
4	Romania	30	3.9%
5	Korea, Republic of	27	3.5%
6	Japan	22	2.8%
7	Netherlands	17	2.2%
8	India	17	2.2%
9	France	15	1.9%
10	Canada	13	1.7%
11	Singapore	10	1.3%
12	Switzerland	8	1%
13	Cyprus	8	1%
14	United Kingdom	8	1%
15	Denmark	7	0.9%
16	Italy	5	0.6%
17	Hong Kong	5	0.6%
18	Sweden	5	0.6%
19	Russia	5	0.6%
20	Nepal	4	0.5%
21	Pakistan	4	0.5%
22	Egypt	4	0.5%
23	Australia	4	0.5%
24	Austria	4	0.5%
25	Belgium	4	0.5%
26	Argentina	3	0.4%
27	Iran, Islamic Republic of	3	0.4%
28	Ireland	3	0.4%
29	Taiwan	3	0.4%
30	Philippines	2	0.3%
31	Poland	1	0.1%
32	Portugal	1	0.1%
33	Norway	1	0.1%
34	Spain	1	0.1%
35	Finland	1	0.1%
36	Dominican Republic	1	0.1%