Rank	Countries/Territories	Count	Percent
1	United States	552	36.7%
2	China	424	28.2%
3	Germany	108	7.2%
4	Japan	35	2.3%
5	Korea, Republic of	31	2.1%
6	India	29	1.9%
7	Singapore	29	1.9%
8	France	27	1.8%
9	Russia	19	1.3%
10	United Kingdom	19	1.3%
11	Netherlands	18	1.2%
12	Switzerland	16	1.1%
13	Australia	12	0.8%
14	Cyprus	11	0.7%
15	Ireland	11	0.7%
16	Brazil	10	0.7%
17	Canada	10	0.7%
18	Turkey	10	0.7%
19	Pakistan	10	0.7%
20	Hong Kong	9	0.6%
21	Iran, Islamic Republic of	9	0.6%
22	Romania	8	0.5%
23	Sweden	7	0.5%
24	South Africa	6	0.4%
25	Spain	6	0.4%
26	Viet Nam	6	0.4%
27	Bosnia and Herzegovina	6	0.4%
28	Ethiopia	5	0.3%
29	Italy	5	0.3%
30	Peru	5	0.3%
31	Taiwan	4	0.3%
32	Uruguay	4	0.3%
33	Mexico	4	0.3%
34	Jordan	4	0.3%
35	Nigeria	3	0.2%
36	Malaysia	3	0.2%
37	Argentina	3	0.2%
38	Egypt	3	0.2%
39	Philippines	3	0.2%
40	Ukraine	2	0.1%
41	Indonesia	2	0.1%
42	Kazakhstan	2	0.1%
43	Israel	2	0.1%
44	Iraq	1	0.1%
45	Kenya	1	0.1%
46	Latvia	1	0.1%
47	Lithuania	1	0.1%
48	Norway	1	0.1%
49	Mongolia	1	0.1%
50	Finland	1	0.1%
51	Cameroon	1	0.1%
52	Albania	1	0.1%
53	Poland	1	0.1%
54	Portugal	1	0.1%
55	Slovenia	1	0.1%