Rank	Countries/Territories	Count	Percent
1	United States	488	46.2%
2	China	270	25.5%
3	Germany	48	4.5%
4	Russia	43	4.1%
5	Japan	33	3.1%
6	India	25	2.4%
7	Italy	23	2.2%
8	Hong Kong	17	1.6%
9	Australia	10	0.9%
10	Netherlands	10	0.9%
11	Canada	9	0.9%
12	Korea, Republic of	8	0.8%
13	Singapore	8	0.8%
14	Senegal	7	0.7%
15	Hungary	7	0.7%
16	Ireland	5	0.5%
17	Indonesia	5	0.5%
18	Argentina	4	0.4%
19	France	4	0.4%
20	Portugal	4	0.4%
21	Viet Nam	3	0.3%
22	Switzerland	3	0.3%
23	El Salvador	3	0.3%
24	Algeria	3	0.3%
25	Greece	3	0.3%
26	Cyprus	2	0.2%
27	Slovakia	2	0.2%
28	Poland	2	0.2%
29	Saudi Arabia	2	0.2%
30	Mongolia	2	0.2%
31	Nigeria	1	0.1%
32	Pakistan	1	0.1%
33	United Kingdom	1	0.1%
34	Iran, Islamic Republic of	1	0.1%