Rank	Countries/Territories	Count	Percent
1	United States	174	38.1%
2	China	83	18.2%
3	Germany	78	17.1%
4	Singapore	16	3.5%
5	Canada	10	2.2%
6	Netherlands	9	2%
7	Japan	8	1.8%
8	United Kingdom	8	1.8%
9	Hungary	8	1.8%
10	India	6	1.3%
11	France	6	1.3%
12	Ukraine	5	1.1%
13	Iran, Islamic Republic of	5	1.1%
14	Egypt	5	1.1%
15	Australia	4	0.9%
16	Russia	4	0.9%
17	Romania	3	0.7%
18	Botswana	3	0.7%
19	Brazil	2	0.4%
20	Belgium	2	0.4%
21	Argentina	2	0.4%
22	Cyprus	2	0.4%
23	Hong Kong	2	0.4%
24	Portugal	2	0.4%
25	Philippines	2	0.4%
26	Thailand	2	0.4%
27	Tunisia	1	0.2%
28	Poland	1	0.2%
29	Spain	1	0.2%
30	Taiwan	1	0.2%
31	Finland	1	0.2%
32	Italy	1	0.2%