Rank	Countries/Territories	Count	Percent
1	United States	305	31.8%
2	China	266	27.8%
3	Italy	82	8.6%
4	Germany	53	5.5%
5	Japan	36	3.8%
6	India	30	3.1%
7	Russia	26	2.7%
8	Canada	16	1.7%
9	Singapore	14	1.5%
10	Spain	9	0.9%
11	United Kingdom	9	0.9%
12	France	9	0.9%
13	Taiwan	8	0.8%
14	Peru	7	0.7%
15	Norway	6	0.6%
16	Poland	4	0.4%
17	Korea, Republic of	4	0.4%
18	Iran, Islamic Republic of	4	0.4%
19	Hong Kong	4	0.4%
20	Argentina	4	0.4%
21	Czech Republic	4	0.4%
22	Thailand	4	0.4%
23	Viet Nam	4	0.4%
24	Romania	3	0.3%
25	Turkey	3	0.3%
26	Australia	3	0.3%
27	Brazil	3	0.3%
28	Cyprus	3	0.3%
29	Israel	3	0.3%
30	Netherlands	3	0.3%
31	Saudi Arabia	3	0.3%
32	Pakistan	3	0.3%
33	Philippines	3	0.3%
34	Portugal	2	0.2%
35	Indonesia	2	0.2%
36	Croatia	2	0.2%
37	Tunisia	2	0.2%
38	Sweden	2	0.2%
39	Switzerland	1	0.1%
40	Slovakia	1	0.1%
41	Denmark	1	0.1%
42	Egypt	1	0.1%
43	Belgium	1	0.1%
44	Iceland	1	0.1%
45	Greece	1	0.1%
46	Ireland	1	0.1%
47	Malaysia	1	0.1%
48	Mongolia	1	0.1%