Rank	Countries/Territories	Count	Percent
1	United States	480	36.3%
2	China	421	31.8%
3	Germany	85	6.4%
4	Russia	42	3.2%
5	France	27	2%
6	Netherlands	25	1.9%
7	Canada	24	1.8%
8	Pakistan	19	1.4%
9	Singapore	16	1.2%
10	Spain	15	1.1%
11	United Kingdom	15	1.1%
12	India	14	1.1%
13	Japan	13	1%
14	Sweden	11	0.8%
15	Taiwan	11	0.8%
16	Australia	9	0.7%
17	Italy	8	0.6%
18	Turkey	8	0.6%
19	Brazil	7	0.5%
20	Belgium	6	0.5%
21	Colombia	6	0.5%
22	Ireland	6	0.5%
23	Hong Kong	5	0.4%
24	Korea, Republic of	5	0.4%
25	Egypt	5	0.4%
26	Cyprus	4	0.3%
27	Israel	4	0.3%
28	Puerto Rico	4	0.3%
29	Viet Nam	4	0.3%
30	Argentina	3	0.2%
31	Ethiopia	3	0.2%
32	Indonesia	2	0.2%
33	Dominican Republic	2	0.2%
34	Qatar	2	0.2%
35	New Zealand	2	0.2%
36	Switzerland	2	0.2%
37	Tunisia	1	0.1%
38	Nigeria	1	0.1%
39	Lithuania	1	0.1%
40	Romania	1	0.1%
41	Poland	1	0.1%
42	Sri Lanka	1	0.1%
43	Croatia	1	0.1%
44	Iran, Islamic Republic of	1	0.1%
45	Greece	1	0.1%