Rank	Countries/Territories	Count	Percent
1	United States	294	28.4%
2	China	283	27.4%
3	Japan	174	16.8%
4	Germany	66	6.4%
5	Singapore	43	4.2%
6	Canada	32	3.1%
7	Iran, Islamic Republic of	22	2.1%
8	France	18	1.7%
9	Sweden	10	1%
10	Pakistan	9	0.9%
11	India	8	0.8%
12	United Kingdom	8	0.8%
13	Netherlands	7	0.7%
14	Korea, Republic of	7	0.7%
15	Russia	6	0.6%
16	Mexico	5	0.5%
17	Hong Kong	5	0.5%
18	Cyprus	4	0.4%
19	Bangladesh	4	0.4%
20	Bulgaria	3	0.3%
21	Colombia	3	0.3%
22	Ireland	3	0.3%
23	Taiwan	3	0.3%
24	Ukraine	2	0.2%
25	Oman	2	0.2%
26	Romania	2	0.2%
27	Australia	2	0.2%
28	Egypt	2	0.2%
29	Ghana	2	0.2%
30	Hungary	1	0.1%
31	Argentina	1	0.1%
32	Brazil	1	0.1%
33	Norway	1	0.1%
34	Venezuela, Bolivarian Republic of	1	0.1%