Rank	Countries/Territories	Count	Percent
1	China	280	49.4%
2	United States	166	29.3%
3	Singapore	18	3.2%
4	Japan	13	2.3%
5	Korea, Republic of	11	1.9%
6	Australia	10	1.8%
7	Sweden	9	1.6%
8	Germany	8	1.4%
9	France	7	1.2%
10	Ireland	6	1.1%
11	Hungary	6	1.1%
12	India	6	1.1%
13	Egypt	6	1.1%
14	Netherlands	5	0.9%
15	Pakistan	4	0.7%
16	Viet Nam	2	0.4%
17	Nigeria	2	0.4%
18	South Africa	2	0.4%
19	Bulgaria	2	0.4%
20	Iran, Islamic Republic of	2	0.4%
21	Hong Kong	1	0.2%
22	Latvia	1	0.2%