Rank	Countries/Territories	Count	Percent
1	United States	464	31.1%
2	China	323	21.7%
3	Japan	163	10.9%
4	Germany	114	7.6%
5	France	56	3.8%
6	India	54	3.6%
7	Canada	43	2.9%
8	Russia	40	2.7%
9	Singapore	29	1.9%
10	Brazil	28	1.9%
11	Iran, Islamic Republic of	22	1.5%
12	Korea, Republic of	21	1.4%
13	United Kingdom	15	1%
14	Netherlands	13	0.9%
15	Spain	11	0.7%
16	Italy	11	0.7%
17	Ireland	8	0.5%
18	Argentina	8	0.5%
19	Sweden	7	0.5%
20	Poland	7	0.5%
21	Cyprus	6	0.4%
22	Taiwan	6	0.4%
23	Israel	5	0.3%
24	Australia	5	0.3%
25	Greece	5	0.3%
26	New Zealand	3	0.2%
27	Algeria	3	0.2%
28	Chile	2	0.1%
29	Ecuador	2	0.1%
30	Portugal	2	0.1%
31	Malaysia	2	0.1%
32	Mexico	2	0.1%
33	Switzerland	2	0.1%
34	South Africa	1	0.1%
35	Pakistan	1	0.1%
36	Philippines	1	0.1%
37	Hong Kong	1	0.1%
38	Latvia	1	0.1%
39	Czech Republic	1	0.1%
40	Cuba	1	0.1%
41	Belgium	1	0.1%
42	Tunisia	1	0.1%