Rank	Countries/Territories	Count	Percent
1	China	309	32.5%
2	United States	295	31%
3	Germany	66	6.9%
4	Japan	49	5.2%
5	Norway	21	2.2%
6	United Kingdom	20	2.1%
7	Korea, Republic of	19	2%
8	Taiwan	17	1.8%
9	Singapore	16	1.7%
10	Australia	16	1.7%
11	Netherlands	12	1.3%
12	Spain	10	1.1%
13	Hong Kong	9	0.9%
14	Puerto Rico	8	0.8%
15	India	7	0.7%
16	France	6	0.6%
17	Canada	5	0.5%
18	Algeria	5	0.5%
19	Cyprus	5	0.5%
20	South Africa	5	0.5%
21	Ireland	5	0.5%
22	Turkey	5	0.5%
23	Argentina	4	0.4%
24	Czech Republic	3	0.3%
25	Iran, Islamic Republic of	3	0.3%
26	Italy	3	0.3%
27	Mexico	3	0.3%
28	Ukraine	3	0.3%
29	Tanzania, United Republic of	3	0.3%
30	Thailand	2	0.2%
31	Viet Nam	2	0.2%
32	Mongolia	2	0.2%
33	Saudi Arabia	2	0.2%
34	Ecuador	2	0.2%
35	Indonesia	1	0.1%
36	Denmark	1	0.1%
37	Bangladesh	1	0.1%
38	Pakistan	1	0.1%
39	Poland	1	0.1%
40	Sweden	1	0.1%
41	Switzerland	1	0.1%
42	Lebanon	1	0.1%
43	Malaysia	1	0.1%