Rank	Countries/Territories	Count	Percent
1	United States	414	39.5%
2	China	252	24.1%
3	Germany	69	6.6%
4	Canada	49	4.7%
5	Japan	42	4%
6	Netherlands	21	2%
7	Greece	21	2%
8	France	20	1.9%
9	Italy	15	1.4%
10	Russia	14	1.3%
11	United Kingdom	13	1.2%
12	Egypt	12	1.1%
13	Singapore	11	1.1%
14	Turkey	11	1.1%
15	Sweden	10	1%
16	Australia	6	0.6%
17	Belgium	5	0.5%
18	Chile	4	0.4%
19	Serbia	4	0.4%
20	Poland	4	0.4%
21	Switzerland	4	0.4%
22	Syrian Arab Republic	3	0.3%
23	Malaysia	3	0.3%
24	Romania	3	0.3%
25	Jordan	3	0.3%
26	Argentina	3	0.3%
27	India	3	0.3%
28	Iran, Islamic Republic of	3	0.3%
29	Hong Kong	3	0.3%
30	Estonia	2	0.2%
31	Angola	2	0.2%
32	Cyprus	2	0.2%
33	Norway	2	0.2%
34	Spain	2	0.2%
35	Thailand	2	0.2%
36	Ukraine	1	0.1%
37	Taiwan	1	0.1%
38	Viet Nam	1	0.1%
39	Sri Lanka	1	0.1%
40	Portugal	1	0.1%
41	Korea, Republic of	1	0.1%
42	Lithuania	1	0.1%
43	Ecuador	1	0.1%
44	Brazil	1	0.1%
45	Hungary	1	0.1%