Rank	Countries/Territories	Count	Percent
1	United States	348	32.2%
2	China	342	31.6%
3	Germany	106	9.8%
4	Japan	44	4.1%
5	Greece	36	3.3%
6	Australia	30	2.8%
7	Singapore	20	1.9%
8	Canada	15	1.4%
9	India	15	1.4%
10		14	1.3%
11	Cyprus	9	0.8%
12	Netherlands	8	0.7%
13	France	8	0.7%
14	Spain	7	0.6%
15	United Kingdom	6	0.6%
16	Norway	6	0.6%
17	Korea, Republic of	5	0.5%
18	Bulgaria	5	0.5%
19	Ukraine	5	0.5%
20	Argentina	4	0.4%
21	Brazil	3	0.3%
22	Denmark	3	0.3%
23	Iran, Islamic Republic of	3	0.3%
24	Italy	3	0.3%
25	Pakistan	3	0.3%
26	Poland	3	0.3%
27	Russia	3	0.3%
28	Turkey	3	0.3%
29	Switzerland	3	0.3%
30	Taiwan	2	0.2%
31	Philippines	2	0.2%
32	Libya	2	0.2%
33	Malaysia	2	0.2%
34	Egypt	2	0.2%
35	Hong Kong	2	0.2%
36	Hungary	1	0.1%
37	Albania	1	0.1%
38	Bangladesh	1	0.1%
39	Mongolia	1	0.1%
40	Jamaica	1	0.1%
41	Indonesia	1	0.1%
42	Serbia	1	0.1%
43	Portugal	1	0.1%
44	South Africa	1	0.1%