Rank	Countries/Territories	Count	Percent
1	United States	269	43.8%
2	China	136	22.1%
3	Germany	38	6.2%
4	United Kingdom	33	5.4%
5	Japan	19	3.1%
6	Netherlands	18	2.9%
7	France	13	2.1%
8	India	9	1.5%
9	Ireland	8	1.3%
10	Egypt	7	1.1%
11	Korea, Republic of	7	1.1%
12	Switzerland	6	1%
13	Hong Kong	6	1%
14	Cyprus	4	0.7%
15	Sweden	4	0.7%
16	Thailand	3	0.5%
17	Canada	3	0.5%
18	Iceland	3	0.5%
19	Zambia	3	0.5%
20	Israel	2	0.3%
21	Italy	2	0.3%
22	Iran, Islamic Republic of	2	0.3%
23	Iraq	2	0.3%
24	Singapore	2	0.3%
25	Spain	2	0.3%
26	Mexico	2	0.3%
27	Romania	2	0.3%
28	Russia	1	0.2%
29	Norway	1	0.2%
30	Peru	1	0.2%
31	Moldova, Republic of	1	0.2%
32	Taiwan	1	0.2%
33	Indonesia	1	0.2%
34	Australia	1	0.2%
35	Finland	1	0.2%
36	Guatemala	1	0.2%