Rank	Countries/Territories	Count	Percent
1	United States	251	25%
2	China	232	23.1%
3	Japan	193	19.2%
4	Germany	63	6.3%
5	Canada	42	4.2%
6	Spain	34	3.4%
7	Singapore	28	2.8%
8	Australia	15	1.5%
9	Netherlands	14	1.4%
10	United Kingdom	11	1.1%
11	Italy	10	1%
12	Taiwan	9	0.9%
13	Bulgaria	9	0.9%
14	Russia	9	0.9%
15	Belgium	8	0.8%
16	Portugal	8	0.8%
17	France	8	0.8%
18	Brazil	7	0.7%
19	Colombia	6	0.6%
20	Cyprus	6	0.6%
21	India	6	0.6%
22	Iran, Islamic Republic of	6	0.6%
23	Lebanon	4	0.4%
24	Korea, Republic of	3	0.3%
25	Romania	2	0.2%
26	Philippines	2	0.2%
27	Slovenia	2	0.2%
28	Ireland	2	0.2%
29	Egypt	2	0.2%
30	Hong Kong	2	0.2%
31	Argentina	2	0.2%
32	Turkey	2	0.2%
33	Czech Republic	1	0.1%
34	Israel	1	0.1%
35	Indonesia	1	0.1%
36	Thailand	1	0.1%
37	Poland	1	0.1%
38	Mexico	1	0.1%
39	Pakistan	1	0.1%