Rank	Countries/Territories	Count	Percent
1	United States	741	42.8%
2	China	342	19.8%
3	Germany	126	7.3%
4	Australia	63	3.6%
5	Japan	62	3.6%
6	Russia	56	3.2%
7	United Kingdom	39	2.3%
8	Costa Rica	36	2.1%
9	France	28	1.6%
10	Romania	26	1.5%
11	Netherlands	24	1.4%
12	Iran, Islamic Republic of	17	1%
13	Canada	15	0.9%
14	Singapore	14	0.8%
15	Spain	13	0.8%
16	Switzerland	11	0.6%
17	Cyprus	11	0.6%
18	Korea, Republic of	10	0.6%
19	Sweden	9	0.5%
20	Italy	8	0.5%
21	Finland	7	0.4%
22	Turkey	7	0.4%
23	India	6	0.3%
24	Czech Republic	4	0.2%
25	Taiwan	4	0.2%
26	Ukraine	3	0.2%
27	South Africa	3	0.2%
28	Hong Kong	3	0.2%
29	Argentina	3	0.2%
30	Brazil	3	0.2%
31	Austria	3	0.2%
32	Bangladesh	3	0.2%
33	Iraq	3	0.2%
34	Latvia	3	0.2%
35	Ireland	2	0.1%
36	Portugal	2	0.1%
37	New Zealand	2	0.1%
38	Belgium	2	0.1%
39	Bosnia and Herzegovina	2	0.1%
40	Denmark	2	0.1%
41	Ecuador	2	0.1%
42	United Arab Emirates	2	0.1%
43	Viet Nam	1	0.1%
44	Hungary	1	0.1%
45	Cuba	1	0.1%
46	Norway	1	0.1%
47	Peru	1	0.1%
48	Poland	1	0.1%
49	Saudi Arabia	1	0.1%
50	Mongolia	1	0.1%