Rank	Countries/Territories	Count	Percent
1	United States	609	33.4%
2	China	409	22.5%
3	Japan	166	9.1%
4	Germany	143	7.9%
5	Russia	63	3.5%
6	France	60	3.3%
7	India	59	3.2%
8	Canada	45	2.5%
9	Singapore	29	1.6%
10	Brazil	28	1.5%
11	Korea, Republic of	28	1.5%
12	Iran, Islamic Republic of	22	1.2%
13	Netherlands	16	0.9%
14	United Kingdom	15	0.8%
15	Spain	12	0.7%
16	Italy	12	0.7%
17	Ireland	10	0.5%
18	Poland	10	0.5%
19	Taiwan	9	0.5%
20	Argentina	8	0.4%
21	Cyprus	7	0.4%
22	Sweden	7	0.4%
23	Australia	6	0.3%
24	Greece	5	0.3%
25	Israel	5	0.3%
26	Portugal	4	0.2%
27	New Zealand	3	0.2%
28	Algeria	3	0.2%
29	Chile	3	0.2%
30	Austria	2	0.1%
31	Hong Kong	2	0.1%
32	Ecuador	2	0.1%
33	Romania	2	0.1%
34	Malaysia	2	0.1%
35	Mexico	2	0.1%
36	Switzerland	2	0.1%
37	Uruguay	2	0.1%
38	Tunisia	1	0.1%
39	South Africa	1	0.1%
40	Pakistan	1	0.1%
41	Philippines	1	0.1%
42	Latvia	1	0.1%
43	Egypt	1	0.1%
44	Czech Republic	1	0.1%
45	Cuba	1	0.1%
46	Belgium	1	0.1%