Rank	Countries/Territories	Count	Percent
1	United States	224	42.4%
2	China	127	24.1%
3	Germany	72	13.6%
4	Canada	16	3%
5	Singapore	16	3%
6	United Kingdom	15	2.8%
7	Japan	13	2.5%
8	Korea, Republic of	6	1.1%
9	India	6	1.1%
10	Ireland	6	1.1%
11	Netherlands	4	0.8%
12	Cyprus	3	0.6%
13	France	3	0.6%
14	Indonesia	3	0.6%
15	Australia	3	0.6%
16	Malaysia	2	0.4%
17	Thailand	2	0.4%
18	Switzerland	1	0.2%
19	Mongolia	1	0.2%
20	Qatar	1	0.2%
21	Belgium	1	0.2%
22	Brazil	1	0.2%
23	Argentina	1	0.2%
24	Iran, Islamic Republic of	1	0.2%