Rank	Countries/Territories	Count	Percent
1	United States	550	43.2%
2	China	241	18.9%
3	Germany	198	15.5%
4	Japan	85	6.7%
5	France	24	1.9%
6	Singapore	20	1.6%
7	Belgium	18	1.4%
8	Australia	17	1.3%
9		15	1.2%
10	Cyprus	12	0.9%
11	Canada	9	0.7%
12	India	9	0.7%
13	Korea, Republic of	8	0.6%
14	Netherlands	8	0.6%
15	New Zealand	8	0.6%
16	United Kingdom	8	0.6%
17	Spain	7	0.5%
18	Ireland	7	0.5%
19	Indonesia	4	0.3%
20	Israel	3	0.2%
21	Thailand	3	0.2%
22	Trinidad and Tobago	3	0.2%
23	Turkey	2	0.2%
24	Ukraine	2	0.2%
25	Romania	2	0.2%
26	Russia	2	0.2%
27	Mongolia	2	0.2%
28	Iran, Islamic Republic of	2	0.2%
29	Poland	1	0.1%
30	Slovakia	1	0.1%
31	South Africa	1	0.1%
32	Switzerland	1	0.1%
33	Vanuatu	1	0.1%