Rank	Countries/Territories	Count	Percent
1	United States	304	38.9%
2	China	168	21.5%
3	Japan	55	7%
4	France	48	6.1%
5	Germany	45	5.8%
6	United Kingdom	21	2.7%
7	Australia	20	2.6%
8	Netherlands	14	1.8%
9	India	12	1.5%
10		11	1.4%
11	Canada	11	1.4%
12	Korea, Republic of	10	1.3%
13	Singapore	8	1%
14	Hong Kong	7	0.9%
15	Czech Republic	5	0.6%
16	Brazil	4	0.5%
17	Norway	4	0.5%
18	Russia	3	0.4%
19	Mongolia	2	0.3%
20	Viet Nam	2	0.3%
21	Bulgaria	2	0.3%
22	Colombia	2	0.3%
23	Cyprus	2	0.3%
24	Argentina	2	0.3%
25	Denmark	2	0.3%
26	Iran, Islamic Republic of	2	0.3%
27	Ireland	2	0.3%
28	Italy	2	0.3%
29	Bangladesh	1	0.1%
30	Belgium	1	0.1%
31	Spain	1	0.1%
32	Sweden	1	0.1%
33	Syrian Arab Republic	1	0.1%
34	Taiwan	1	0.1%
35	Turkey	1	0.1%
36	Nepal	1	0.1%
37	Kazakhstan	1	0.1%
38	Saudi Arabia	1	0.1%
39	Nigeria	1	0.1%