Rank	Countries/Territories	Count	Percent
1	United States	493	31.4%
2	China	341	21.7%
3	Japan	163	10.4%
4	Germany	126	8%
5	France	56	3.6%
6	India	55	3.5%
7	Russia	50	3.2%
8	Canada	43	2.7%
9	Singapore	29	1.8%
10	Brazil	28	1.8%
11	Iran, Islamic Republic of	22	1.4%
12	Korea, Republic of	22	1.4%
13	United Kingdom	15	1%
14	Netherlands	14	0.9%
15	Spain	12	0.8%
16	Italy	11	0.7%
17	Poland	10	0.6%
18	Ireland	8	0.5%
19	Argentina	8	0.5%
20	Sweden	7	0.4%
21	Taiwan	6	0.4%
22	Cyprus	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	Tunisia	1	0.1%
35	Latvia	1	0.1%
36	Hong Kong	1	0.1%
37	South Africa	1	0.1%
38	Pakistan	1	0.1%
39	Philippines	1	0.1%
40	Egypt	1	0.1%
41	Czech Republic	1	0.1%
42	Cuba	1	0.1%
43	Belgium	1	0.1%