Rank	Countries/Territories	Count	Percent
1	United States	471	30.3%
2	China	435	28%
3	Japan	115	7.4%
4	Germany	93	6%
5	Singapore	45	2.9%
6	France	39	2.5%
7	Australia	39	2.5%
8	Russia	34	2.2%
9	Netherlands	26	1.7%
10	India	25	1.6%
11	Romania	18	1.2%
12	Turkey	16	1%
13	Korea, Republic of	15	1%
14	Bulgaria	14	0.9%
15	United Kingdom	14	0.9%
16	Canada	12	0.8%
17	Egypt	10	0.6%
18	Ireland	9	0.6%
19	Tunisia	9	0.6%
20	Iraq	8	0.5%
21	Iran, Islamic Republic of	7	0.4%
22	Argentina	7	0.4%
23	Spain	7	0.4%
24	Poland	7	0.4%
25	Switzerland	6	0.4%
26	Ukraine	6	0.4%
27	Brazil	6	0.4%
28	Cyprus	5	0.3%
29	Hong Kong	4	0.3%
30	Lebanon	4	0.3%
31	Taiwan	4	0.3%
32	South Africa	4	0.3%
33	Portugal	4	0.3%
34	Philippines	4	0.3%
35	Mongolia	3	0.2%
36	Malaysia	3	0.2%
37	Indonesia	3	0.2%
38	Jordan	2	0.1%
39	Kazakhstan	2	0.1%
40	Mexico	2	0.1%
41	Ethiopia	2	0.1%
42	Croatia	2	0.1%
43	Nigeria	2	0.1%
44	Oman	1	0.1%
45	Thailand	1	0.1%
46	Sri Lanka	1	0.1%
47	Sweden	1	0.1%
48	Slovakia	1	0.1%
49	Viet Nam	1	0.1%
50	Cuba	1	0.1%
51	Colombia	1	0.1%
52	Czech Republic	1	0.1%
53	Greece	1	0.1%
54	New Zealand	1	0.1%
55	Lithuania	1	0.1%
56	Kenya	1	0.1%