Rank	Countries/Territories	Count	Percent
1	United States	578	44.7%
2	China	391	30.2%
3	Germany	107	8.3%
4	Spain	38	2.9%
5	Greece	17	1.3%
6	Pakistan	16	1.2%
7	Australia	14	1.1%
8	Japan	13	1%
9	United Kingdom	12	0.9%
10	Singapore	11	0.9%
11	Canada	11	0.9%
12	Netherlands	10	0.8%
13	India	9	0.7%
14	France	8	0.6%
15	Turkey	7	0.5%
16	Russia	6	0.5%
17	Korea, Republic of	6	0.5%
18	Brazil	6	0.5%
19	Cyprus	6	0.5%
20	Ireland	5	0.4%
21	Hong Kong	3	0.2%
22	Denmark	2	0.2%
23	Croatia	2	0.2%
24	Argentina	2	0.2%
25	Taiwan	2	0.2%
26	Uzbekistan	2	0.2%
27	South Africa	2	0.2%
28	Philippines	2	0.2%
29	Poland	2	0.2%
30	Romania	1	0.1%
31	Viet Nam	1	0.1%
32	Hungary	1	0.1%
33	Italy	1	0.1%