Rank	Countries/Territories	Count	Percent
1	United States	404	42.6%
2	China	276	29.1%
3	Germany	46	4.9%
4	Australia	31	3.3%
5	Canada	22	2.3%
6	India	20	2.1%
7	Russia	18	1.9%
8	Pakistan	17	1.8%
9	Korea, Republic of	15	1.6%
10	Japan	13	1.4%
11	United Kingdom	7	0.7%
12	Taiwan	7	0.7%
13	Senegal	7	0.7%
14	Iran, Islamic Republic of	7	0.7%
15	Ireland	7	0.7%
16	Malaysia	6	0.6%
17	France	5	0.5%
18	Brazil	5	0.5%
19	Singapore	5	0.5%
20	Netherlands	4	0.4%
21	Palestine, State of	3	0.3%
22	Turkey	3	0.3%
23	Greece	3	0.3%
24	Mexico	3	0.3%
25	Italy	2	0.2%
26	Hong Kong	2	0.2%
27	Cyprus	2	0.2%
28	Czech Republic	2	0.2%
29	Mongolia	1	0.1%
30	Ukraine	1	0.1%
31	Oman	1	0.1%
32	Slovakia	1	0.1%
33	South Africa	1	0.1%
34	Sweden	1	0.1%