Rank	Countries/Territories	Count	Percent
1	United States	268	42.9%
2	China	141	22.6%
3	Germany	40	6.4%
4	Australia	18	2.9%
5	Korea, Republic of	18	2.9%
6	Japan	12	1.9%
7	France	10	1.6%
8	Netherlands	9	1.4%
9	Singapore	9	1.4%
10	India	8	1.3%
11	Brazil	8	1.3%
12	Taiwan	7	1.1%
13	United Kingdom	7	1.1%
14	Italy	7	1.1%
15	Canada	6	1%
16	Ireland	5	0.8%
17	Algeria	5	0.8%
18	Ukraine	5	0.8%
19	Spain	4	0.6%
20	Denmark	4	0.6%
21	Cyprus	3	0.5%
22	Hungary	3	0.5%
23	Indonesia	3	0.5%
24	Iran, Islamic Republic of	2	0.3%
25	Greece	2	0.3%
26	Hong Kong	2	0.3%
27	Egypt	2	0.3%
28	Chile	2	0.3%
29	United Arab Emirates	2	0.3%
30	Mongolia	2	0.3%
31	Viet Nam	2	0.3%
32	Nigeria	2	0.3%
33	Norway	2	0.3%
34	Russia	2	0.3%
35	Malaysia	1	0.2%
36	Mexico	1	0.2%