Rank	Countries/Territories	Count	Percent
1	United States	217	39.3%
2	China	100	18.1%
3	Germany	85	15.4%
4	Singapore	26	4.7%
5	Netherlands	12	2.2%
6	United Kingdom	11	2%
7	Canada	10	1.8%
8	Hungary	8	1.4%
9	Japan	8	1.4%
10	France	8	1.4%
11	India	7	1.3%
12	Russia	6	1.1%
13	Ukraine	5	0.9%
14	Iran, Islamic Republic of	5	0.9%
15	Egypt	5	0.9%
16	Australia	4	0.7%
17	Botswana	3	0.5%
18	Romania	3	0.5%
19	Portugal	2	0.4%
20	Korea, Republic of	2	0.4%
21	Philippines	2	0.4%
22	Thailand	2	0.4%
23	Sweden	2	0.4%
24	Brazil	2	0.4%
25	Belgium	2	0.4%
26	Argentina	2	0.4%
27	Colombia	2	0.4%
28	Cyprus	2	0.4%
29	Hong Kong	2	0.4%
30	Finland	1	0.2%
31	Italy	1	0.2%
32	Taiwan	1	0.2%
33	Spain	1	0.2%
34	Tunisia	1	0.2%
35	Poland	1	0.2%
36	Puerto Rico	1	0.2%