Rank	Countries/Territories	Count	Percent
1	United States	180	31.4%
2	China	108	18.8%
3	Germany	49	8.5%
4	United Kingdom	45	7.8%
5	Japan	33	5.7%
6	Poland	14	2.4%
7	Netherlands	13	2.3%
8	Canada	11	1.9%
9	Brazil	10	1.7%
10	India	9	1.6%
11	Ireland	9	1.6%
12	Korea, Republic of	9	1.6%
13	Norway	8	1.4%
14	Romania	6	1%
15	Belgium	6	1%
16	France	5	0.9%
17	Russia	5	0.9%
18	Singapore	5	0.9%
19	Peru	4	0.7%
20	Libya	4	0.7%
21	Hong Kong	4	0.7%
22	Mexico	3	0.5%
23	Australia	3	0.5%
24	Turkey	3	0.5%
25	Ukraine	2	0.3%
26	Colombia	2	0.3%
27	Cyprus	2	0.3%
28	Egypt	2	0.3%
29	Greece	2	0.3%
30	New Zealand	2	0.3%
31	Lithuania	2	0.3%
32	Taiwan	2	0.3%
33	Tanzania, United Republic of	2	0.3%
34	South Africa	1	0.2%
35	Spain	1	0.2%
36	Sweden	1	0.2%
37	Macao	1	0.2%
38	Italy	1	0.2%
39	Bulgaria	1	0.2%
40	Finland	1	0.2%
41	Austria	1	0.2%
42	Argentina	1	0.2%
43	United Arab Emirates	1	0.2%