Rank	Countries/Territories	Count	Percent
1	United States	215	32.7%
2	China	189	28.7%
3	Germany	43	6.5%
4	Japan	38	5.8%
5	India	35	5.3%
6	Spain	14	2.1%
7	Austria	12	1.8%
8	Indonesia	11	1.7%
9	Russia	9	1.4%
10	South Africa	8	1.2%
11	France	8	1.2%
12	Iran, Islamic Republic of	7	1.1%
13	Korea, Republic of	6	0.9%
14	Netherlands	6	0.9%
15	Taiwan	5	0.8%
16	Turkey	5	0.8%
17	Philippines	4	0.6%
18	Canada	4	0.6%
19	Australia	4	0.6%
20	Cyprus	4	0.6%
21	United Kingdom	4	0.6%
22	Mexico	2	0.3%
23	Denmark	2	0.3%
24	Colombia	2	0.3%
25	Croatia	2	0.3%
26	Brazil	2	0.3%
27	Kazakhstan	2	0.3%
28	Israel	2	0.3%
29	Italy	2	0.3%
30	Tanzania, United Republic of	2	0.3%
31	Switzerland	2	0.3%
32	Ukraine	1	0.2%
33	Romania	1	0.2%
34	Lao People's Democratic Republic	1	0.2%
35	Argentina	1	0.2%
36	Hong Kong	1	0.2%
37	Iraq	1	0.2%
38	Viet Nam	1	0.2%