Rank	Countries/Territories	Count	Percent
1	United States	282	28.3%
2	China	272	27.3%
3	Japan	174	17.4%
4	Germany	66	6.6%
5	Singapore	42	4.2%
6	Canada	29	2.9%
7	Iran, Islamic Republic of	21	2.1%
8	France	16	1.6%
9	Sweden	10	1%
10	Pakistan	9	0.9%
11	United Kingdom	8	0.8%
12	India	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	Bulgaria	3	0.3%
20	Ireland	3	0.3%
21	Taiwan	3	0.3%
22	Ukraine	2	0.2%
23	Oman	2	0.2%
24	Romania	2	0.2%
25	Ghana	2	0.2%
26	Australia	2	0.2%
27	Bangladesh	2	0.2%
28	Egypt	2	0.2%
29	Argentina	1	0.1%
30	Hungary	1	0.1%
31	Venezuela, Bolivarian Republic of	1	0.1%
32	Norway	1	0.1%