Rank	Countries/Territories	Count	Percent
1	United States	538	29.1%
2	China	398	21.6%
3	Germany	160	8.7%
4	United Kingdom	71	3.8%
5	Portugal	57	3.1%
6	Japan	50	2.7%
7	Kazakhstan	39	2.1%
8	Australia	38	2.1%
9	Korea, Republic of	37	2%
10	Indonesia	36	2%
11	France	29	1.6%
12	India	28	1.5%
13	Spain	27	1.5%
14	Sweden	23	1.2%
15	Netherlands	19	1%
16	Norway	17	0.9%
17	Malaysia	16	0.9%
18	Turkey	16	0.9%
19	Singapore	14	0.8%
20	Taiwan	13	0.7%
21	Poland	12	0.7%
22	Canada	12	0.7%
23	Colombia	11	0.6%
24	Belgium	11	0.6%
25	Denmark	10	0.5%
26	Greece	10	0.5%
27	Italy	10	0.5%
28	Iran, Islamic Republic of	9	0.5%
29	Ireland	9	0.5%
30	Cyprus	9	0.5%
31	Hong Kong	7	0.4%
32	Finland	6	0.3%
33	United Arab Emirates	6	0.3%
34	Croatia	5	0.3%
35	Argentina	5	0.3%
36	Austria	5	0.3%
37	Philippines	5	0.3%
38	Pakistan	5	0.3%
39	Uganda	5	0.3%
40	South Africa	5	0.3%
41	Serbia	4	0.2%
42	Russia	4	0.2%
43	Brazil	4	0.2%
44	Hungary	4	0.2%
45	Iceland	4	0.2%
46	Armenia	3	0.2%
47	Bahrain	3	0.2%
48	Algeria	3	0.2%
49	Romania	3	0.2%
50	Viet Nam	3	0.2%
51	Thailand	2	0.1%
52	New Zealand	2	0.1%
53	Montenegro	2	0.1%
54	Lebanon	2	0.1%
55	Ethiopia	2	0.1%
56	Jamaica	2	0.1%
57	Kenya	2	0.1%
58	Israel	1	0.1%
59	Ghana	1	0.1%
60	Chile	1	0.1%
61	Bangladesh	1	0.1%
62	Cambodia	1	0.1%
63	Mauritius	1	0.1%
64	Mexico	1	0.1%
65	Mongolia	1	0.1%
66	Oman	1	0.1%
67	Peru	1	0.1%
68	Switzerland	1	0.1%
69	Sri Lanka	1	0.1%
70	Saudi Arabia	1	0.1%
71	Slovakia	1	0.1%