Rank	Countries/Territories	Count	Percent
1	United States	324	39.1%
2	China	179	21.6%
3	Japan	56	6.8%
4	France	49	5.9%
5	Germany	45	5.4%
6	Australia	22	2.7%
7	United Kingdom	21	2.5%
8	Canada	19	2.3%
9	India	14	1.7%
10	Netherlands	14	1.7%
11	Korea, Republic of	11	1.3%
12		11	1.3%
13	Singapore	8	1%
14	Hong Kong	7	0.8%
15	Czech Republic	5	0.6%
16	Brazil	4	0.5%
17	Norway	4	0.5%
18	Russia	3	0.4%
19	Cyprus	3	0.4%
20	Denmark	2	0.2%
21	Iran, Islamic Republic of	2	0.2%
22	Ireland	2	0.2%
23	Italy	2	0.2%
24	Bulgaria	2	0.2%
25	Colombia	2	0.2%
26	Argentina	2	0.2%
27	Viet Nam	2	0.2%
28	Mongolia	2	0.2%
29	Nepal	1	0.1%
30	Nigeria	1	0.1%
31	Kazakhstan	1	0.1%
32	Saudi Arabia	1	0.1%
33	Spain	1	0.1%
34	Sweden	1	0.1%
35	Syrian Arab Republic	1	0.1%
36	Taiwan	1	0.1%
37	Turkey	1	0.1%
38	Ukraine	1	0.1%
39	Bangladesh	1	0.1%
40	Belgium	1	0.1%