Rank	Countries/Territories	Count	Percent
1	United States	440	42.4%
2	China	207	20%
3	Singapore	94	9.1%
4	Germany	79	7.6%
5	United Kingdom	39	3.8%
6	India	32	3.1%
7	Israel	30	2.9%
8	Japan	18	1.7%
9	Russia	11	1.1%
10	France	11	1.1%
11	Korea, Republic of	9	0.9%
12	Hong Kong	8	0.8%
13	Brazil	8	0.8%
14	Canada	6	0.6%
15	Cote D'ivoire	6	0.6%
16	Australia	6	0.6%
17	Indonesia	4	0.4%
18	Ukraine	4	0.4%
19	Taiwan	3	0.3%
20	Netherlands	3	0.3%
21	Iran, Islamic Republic of	3	0.3%
22	Mexico	2	0.2%
23	Belgium	2	0.2%
24	Argentina	2	0.2%
25	Palestine, State of	2	0.2%
26	Switzerland	2	0.2%
27	South Africa	2	0.2%
28	Spain	1	0.1%
29	New Zealand	1	0.1%
30	Albania	1	0.1%
31	Mongolia	1	0.1%