Rank	Countries/Territories	Count	Percent
1	United States	520	36%
2	China	411	28.5%
3	Germany	103	7.1%
4	Japan	35	2.4%
5	Korea, Republic of	31	2.1%
6	India	29	2%
7	Singapore	29	2%
8	France	26	1.8%
9	Russia	19	1.3%
10	Netherlands	18	1.2%
11	United Kingdom	17	1.2%
12	Switzerland	16	1.1%
13	Australia	12	0.8%
14	Cyprus	10	0.7%
15	Brazil	10	0.7%
16	Canada	10	0.7%
17	Pakistan	10	0.7%
18	Turkey	10	0.7%
19	Ireland	9	0.6%
20	Iran, Islamic Republic of	9	0.6%
21	Hong Kong	8	0.6%
22	Romania	8	0.6%
23	South Africa	6	0.4%
24	Spain	6	0.4%
25	Viet Nam	6	0.4%
26	Bosnia and Herzegovina	6	0.4%
27	Ethiopia	5	0.3%
28	Italy	5	0.3%
29	Peru	5	0.3%
30	Sweden	5	0.3%
31	Uruguay	4	0.3%
32	Taiwan	4	0.3%
33	Jordan	4	0.3%
34	Philippines	3	0.2%
35	Malaysia	3	0.2%
36	Mexico	3	0.2%
37	Argentina	3	0.2%
38	Egypt	3	0.2%
39	Nigeria	3	0.2%
40	Ukraine	2	0.1%
41	Indonesia	2	0.1%
42	Kazakhstan	2	0.1%
43	Israel	2	0.1%
44	Kenya	1	0.1%
45	Mongolia	1	0.1%
46	Latvia	1	0.1%
47	Lithuania	1	0.1%
48	Poland	1	0.1%
49	Portugal	1	0.1%
50	Iraq	1	0.1%
51	Cameroon	1	0.1%
52	Albania	1	0.1%
53	Norway	1	0.1%
54	Slovenia	1	0.1%