Rank	Countries/Territories	Count	Percent
1	United States	366	28.4%
2	China	332	25.7%
3	Germany	92	7.1%
4	Spain	50	3.9%
5	Canada	47	3.6%
6	Norway	44	3.4%
7	Mexico	35	2.7%
8	Australia	35	2.7%
9	United Kingdom	33	2.6%
10	Japan	32	2.5%
11	Hong Kong	28	2.2%
12	India	22	1.7%
13	Netherlands	22	1.7%
14	France	17	1.3%
15	Switzerland	13	1%
16	Korea, Republic of	12	0.9%
17	Singapore	11	0.9%
18	South Africa	7	0.5%
19	Cyprus	7	0.5%
20	Belgium	7	0.5%
21	Romania	6	0.5%
22	Russia	5	0.4%
23	Sweden	5	0.4%
24	Taiwan	5	0.4%
25	Nigeria	5	0.4%
26	Brazil	4	0.3%
27	Bulgaria	3	0.2%
28	Malaysia	3	0.2%
29	Pakistan	3	0.2%
30	New Zealand	3	0.2%
31	Ireland	3	0.2%
32	Israel	3	0.2%
33	Indonesia	3	0.2%
34	Iran, Islamic Republic of	3	0.2%
35	Portugal	3	0.2%
36	Sri Lanka	2	0.2%
37	Uganda	2	0.2%
38	Ukraine	2	0.2%
39	Iraq	2	0.2%
40	Lesotho	2	0.2%
41	Peru	2	0.2%
42	Croatia	2	0.2%
43	Argentina	2	0.2%
44	Ecuador	1	0.1%
45	Hungary	1	0.1%
46	Greece	1	0.1%
47	Chad	1	0.1%
48	Lithuania	1	0.1%