Rank	Countries/Territories	Count	Percent
1	United States	529	33.3%
2	China	261	16.4%
3	Germany	102	6.4%
4	Japan	99	6.2%
5	Australia	79	5%
6	Netherlands	42	2.6%
7	France	41	2.6%
8	Spain	38	2.4%
9	Romania	36	2.3%
10	Russia	34	2.1%
11	United Kingdom	33	2.1%
12	Singapore	33	2.1%
13	Sweden	32	2%
14	Ireland	29	1.8%
15	Canada	25	1.6%
16	India	17	1.1%
17	Mexico	14	0.9%
18	Poland	13	0.8%
19	Switzerland	9	0.6%
20	Taiwan	9	0.6%
21	Brazil	9	0.6%
22	Belgium	8	0.5%
23	Pakistan	8	0.5%
24	Iran, Islamic Republic of	7	0.4%
25	Indonesia	6	0.4%
26	Cyprus	6	0.4%
27	Denmark	6	0.4%
28	Malaysia	6	0.4%
29	Thailand	4	0.3%
30	Turkey	4	0.3%
31	Bulgaria	4	0.3%
32	Israel	4	0.3%
33	Italy	4	0.3%
34	New Zealand	4	0.3%
35	Korea, Republic of	3	0.2%
36	Argentina	3	0.2%
37	Ecuador	3	0.2%
38	Serbia	3	0.2%
39	Slovenia	3	0.2%
40	South Africa	2	0.1%
41	Ukraine	2	0.1%
42	Hungary	2	0.1%
43	Austria	2	0.1%
44	Norway	2	0.1%
45	Montenegro	2	0.1%
46	Morocco	1	0.1%
47	Mongolia	1	0.1%
48	Philippines	1	0.1%
49	Lithuania	1	0.1%
50	Kenya	1	0.1%
51	Colombia	1	0.1%
52	Georgia	1	0.1%