Rank	Countries/Territories	Count	Percent
1	United States	401	33.5%
2	China	290	24.2%
3	Japan	189	15.8%
4	Germany	70	5.9%
5	Australia	51	4.3%
6	Singapore	33	2.8%
7	France	31	2.6%
8	Sweden	17	1.4%
9	United Kingdom	17	1.4%
10	Canada	16	1.3%
11	Netherlands	15	1.3%
12	Korea, Republic of	10	0.8%
13	Spain	6	0.5%
14	Ukraine	5	0.4%
15	Italy	5	0.4%
16	Argentina	5	0.4%
17	Hong Kong	4	0.3%
18	Latvia	4	0.3%
19	India	3	0.3%
20	Iran, Islamic Republic of	3	0.3%
21	Cyprus	3	0.3%
22	Norway	3	0.3%
23	Russia	3	0.3%
24	Serbia	2	0.2%
25	Portugal	2	0.2%
26	Ireland	2	0.2%
27	Kazakhstan	2	0.2%
28	Malaysia	1	0.1%
29	Hungary	1	0.1%
30	Bangladesh	1	0.1%
31	Taiwan	1	0.1%