Rank	Countries/Territories	Count	Percent
1	United States	340	37.9%
2	China	268	29.9%
3	Germany	120	13.4%
4	Japan	26	2.9%
5	Switzerland	23	2.6%
6	Australia	12	1.3%
7	Singapore	11	1.2%
8	Netherlands	10	1.1%
9	India	10	1.1%
10	France	7	0.8%
11	United Kingdom	5	0.6%
12	Spain	5	0.6%
13	Ireland	5	0.6%
14	Italy	5	0.6%
15	Korea, Republic of	4	0.4%
16	Cyprus	4	0.4%
17	Taiwan	4	0.4%
18	Thailand	4	0.4%
19	Romania	3	0.3%
20	Russia	3	0.3%
21	Malaysia	3	0.3%
22	Mexico	3	0.3%
23		3	0.3%
24	Canada	3	0.3%
25	Egypt	2	0.2%
26	Hong Kong	2	0.2%
27	Lebanon	2	0.2%
28	Argentina	2	0.2%
29	Brazil	2	0.2%
30	Colombia	2	0.2%
31	New Zealand	2	0.2%
32	Ecuador	1	0.1%