Rank	Countries/Territories	Count	Percent
1	United States	279	32.9%
2	China	270	31.8%
3	Germany	98	11.5%
4	United Kingdom	40	4.7%
5	India	25	2.9%
6	Japan	15	1.8%
7	Singapore	11	1.3%
8	Palestine, State of	10	1.2%
9	Australia	10	1.2%
10	Netherlands	7	0.8%
11	Thailand	7	0.8%
12	France	6	0.7%
13	Canada	5	0.6%
14	Iran, Islamic Republic of	5	0.6%
15	Ireland	5	0.6%
16	Italy	5	0.6%
17	Hong Kong	4	0.5%
18	Sweden	4	0.5%
19	Russia	4	0.5%
20	Korea, Republic of	4	0.5%
21	Malaysia	3	0.4%
22	Romania	3	0.4%
23	Hungary	3	0.4%
24	Austria	3	0.4%
25	Tanzania, United Republic of	3	0.4%
26	Colombia	2	0.2%
27	Cyprus	2	0.2%
28	Ecuador	2	0.2%
29	Iraq	2	0.2%
30	Jordan	2	0.2%
31	Taiwan	2	0.2%
32	Turkey	2	0.2%
33	United Arab Emirates	1	0.1%
34	Saudi Arabia	1	0.1%
35	Spain	1	0.1%
36	Kenya	1	0.1%
37	Kuwait	1	0.1%
38	Greece	1	0.1%