Rank	Countries/Territories	Count	Percent
1	United States	544	43.3%
2	China	279	22.2%
3	Germany	145	11.5%
4	Canada	47	3.7%
5	Australia	26	2.1%
6	Korea, Republic of	22	1.8%
7	Japan	19	1.5%
8	Netherlands	15	1.2%
9	Denmark	11	0.9%
10	India	11	0.9%
11	Cyprus	10	0.8%
12	Ireland	10	0.8%
13	United Kingdom	10	0.8%
14	Singapore	9	0.7%
15	Brazil	9	0.7%
16	France	8	0.6%
17	Greece	8	0.6%
18	Hong Kong	6	0.5%
19	Hungary	6	0.5%
20	Romania	6	0.5%
21	Italy	4	0.3%
22	Iran, Islamic Republic of	4	0.3%
23	Malaysia	3	0.2%
24	New Zealand	3	0.2%
25	Philippines	3	0.2%
26	Indonesia	3	0.2%
27	Ecuador	3	0.2%
28	Croatia	3	0.2%
29	Ukraine	3	0.2%
30	Sweden	3	0.2%
31	Spain	2	0.2%
32	Taiwan	2	0.2%
33	Thailand	2	0.2%
34	Turkey	2	0.2%
35	Venezuela, Bolivarian Republic of	2	0.2%
36	Bulgaria	2	0.2%
37	Qatar	2	0.2%
38	Norway	1	0.1%
39	Russia	1	0.1%
40	South Africa	1	0.1%
41	Mexico	1	0.1%
42	Mongolia	1	0.1%
43	Argentina	1	0.1%
44	Egypt	1	0.1%
45	Georgia	1	0.1%
46	Switzerland	1	0.1%