Rank	Countries/Territories	Count	Percent
1	United States	420	34.2%
2	China	182	14.8%
3	Germany	148	12%
4	Australia	100	8.1%
5	India	50	4.1%
6	United Kingdom	39	3.2%
7	Norway	34	2.8%
8	France	31	2.5%
9	Netherlands	29	2.4%
10	Japan	16	1.3%
11	Iran, Islamic Republic of	15	1.2%
12	Sweden	14	1.1%
13	Philippines	12	1%
14	Denmark	12	1%
15	South Africa	11	0.9%
16		10	0.8%
17	Palestine, State of	9	0.7%
18	Ireland	9	0.7%
19	Russia	9	0.7%
20	Cyprus	7	0.6%
21	Hong Kong	5	0.4%
22	Singapore	5	0.4%
23	Turkey	4	0.3%
24	Indonesia	4	0.3%
25	Canada	4	0.3%
26	Italy	4	0.3%
27	Portugal	4	0.3%
28	Poland	3	0.2%
29	Israel	3	0.2%
30	Brazil	3	0.2%
31	Slovenia	3	0.2%
32	Moldova, Republic of	3	0.2%
33	United Arab Emirates	3	0.2%
34	Zimbabwe	3	0.2%
35	Ukraine	2	0.2%
36	Switzerland	2	0.2%
37	Bangladesh	2	0.2%
38	Colombia	2	0.2%
39	Argentina	2	0.2%
40	Hungary	2	0.2%
41	Kenya	2	0.2%
42	Nigeria	2	0.2%
43	Romania	1	0.1%
44	Korea, Republic of	1	0.1%
45	Malawi	1	0.1%
46	Egypt	1	0.1%
47	Austria	1	0.1%