Rank	Countries/Territories	Count	Percent
1	United States	575	31.5%
2	China	571	31.2%
3	Germany	104	5.7%
4	Russia	99	5.4%
5	Netherlands	54	3%
6	France	50	2.7%
7	Japan	47	2.6%
8	Australia	35	1.9%
9	Canada	31	1.7%
10	Korea, Republic of	25	1.4%
11	United Kingdom	25	1.4%
12	Portugal	19	1%
13	Poland	18	1%
14	India	16	0.9%
15	Hong Kong	13	0.7%
16	Taiwan	13	0.7%
17	Ireland	11	0.6%
18	Switzerland	10	0.5%
19	Cyprus	9	0.5%
20	Brazil	9	0.5%
21	Norway	8	0.4%
22	Sweden	8	0.4%
23	Singapore	7	0.4%
24	Mexico	7	0.4%
25	Kazakhstan	7	0.4%
26	Turkey	6	0.3%
27	Egypt	5	0.3%
28	Bangladesh	5	0.3%
29	Belgium	4	0.2%
30	Italy	4	0.2%
31	Israel	3	0.2%
32	Malaysia	3	0.2%
33	Denmark	3	0.2%
34	Ukraine	3	0.2%
35	South Africa	3	0.2%
36	Iran, Islamic Republic of	2	0.1%
37	Belarus	2	0.1%
38	Pakistan	2	0.1%
39	Palestine, State of	2	0.1%
40	Philippines	2	0.1%
41	Moldova, Republic of	1	0.1%
42	Argentina	1	0.1%
43	Armenia	1	0.1%
44	Cambodia	1	0.1%
45	Georgia	1	0.1%
46	Slovenia	1	0.1%
47	Viet Nam	1	0.1%
48	Zambia	1	0.1%