Rank	Countries/Territories	Count	Percent
1	United States	239	36.2%
2	China	148	22.4%
3	Japan	76	11.5%
4	Germany	49	7.4%
5	Singapore	19	2.9%
6	France	18	2.7%
7	Netherlands	12	1.8%
8	Taiwan	12	1.8%
9	United Kingdom	9	1.4%
10	Egypt	8	1.2%
11	India	7	1.1%
12	Switzerland	7	1.1%
13	Portugal	7	1.1%
14	Australia	6	0.9%
15	Ireland	4	0.6%
16	Italy	4	0.6%
17	Kenya	3	0.5%
18	Malaysia	3	0.5%
19	Tanzania, United Republic of	3	0.5%
20	Thailand	2	0.3%
21	Romania	2	0.3%
22	New Zealand	2	0.3%
23	Poland	2	0.3%
24	Ukraine	2	0.3%
25	Spain	2	0.3%
26	Iran, Islamic Republic of	2	0.3%
27	Hong Kong	2	0.3%
28	Canada	2	0.3%
29	Chile	2	0.3%
30	Colombia	2	0.3%
31	Cyprus	1	0.2%
32	Austria	1	0.2%
33	Russia	1	0.2%
34	Turkey	1	0.2%