Rank	Countries/Territories	Count	Percent
1	United States	585	33.2%
2	China	383	21.8%
3	Japan	163	9.3%
4	Germany	140	8%
5	Russia	63	3.6%
6	France	60	3.4%
7	India	59	3.4%
8	Canada	43	2.4%
9	Singapore	29	1.6%
10	Korea, Republic of	28	1.6%
11	Brazil	28	1.6%
12	Iran, Islamic Republic of	22	1.2%
13	Netherlands	16	0.9%
14	United Kingdom	15	0.9%
15	Spain	12	0.7%
16	Italy	12	0.7%
17	Poland	10	0.6%
18	Ireland	10	0.6%
19	Taiwan	9	0.5%
20	Argentina	8	0.5%
21	Cyprus	7	0.4%
22	Sweden	7	0.4%
23	Australia	6	0.3%
24	Israel	5	0.3%
25	Greece	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	Ecuador	2	0.1%
31	Romania	2	0.1%
32	Malaysia	2	0.1%
33	Mexico	2	0.1%
34	Switzerland	2	0.1%
35	Uruguay	2	0.1%
36	Tunisia	1	0.1%
37	Latvia	1	0.1%
38	Hong Kong	1	0.1%
39	South Africa	1	0.1%
40	Pakistan	1	0.1%
41	Philippines	1	0.1%
42	Egypt	1	0.1%
43	Czech Republic	1	0.1%
44	Cuba	1	0.1%
45	Belgium	1	0.1%