Rank	Countries/Territories	Count	Percent
1	United States	254	31.5%
2	China	185	23%
3	Germany	107	13.3%
4	Italy	32	4%
5		29	3.6%
6	India	25	3.1%
7	Korea, Republic of	14	1.7%
8	Netherlands	14	1.7%
9	Singapore	14	1.7%
10	Japan	13	1.6%
11	Canada	13	1.6%
12	Taiwan	10	1.2%
13	Russia	9	1.1%
14	Norway	8	1%
15	Cyprus	8	1%
16	Colombia	7	0.9%
17	Australia	7	0.9%
18	United Kingdom	7	0.9%
19	Hong Kong	6	0.7%
20	Malaysia	5	0.6%
21	Mongolia	4	0.5%
22	Portugal	4	0.5%
23	Brazil	4	0.5%
24	Denmark	3	0.4%
25	Turkey	3	0.4%
26	Iran, Islamic Republic of	3	0.4%
27	Viet Nam	3	0.4%
28	Poland	2	0.2%
29	Saudi Arabia	2	0.2%
30	Egypt	2	0.2%
31	Bangladesh	2	0.2%
32	Argentina	1	0.1%
33	France	1	0.1%
34	Indonesia	1	0.1%
35	Greece	1	0.1%
36	Spain	1	0.1%
37	Sweden	1	0.1%
38	Ireland	1	0.1%