Rank	Countries/Territories	Count	Percent
1	United States	150	31.6%
2	China	141	29.7%
3	Germany	74	15.6%
4	Japan	11	2.3%
5	France	11	2.3%
6	Switzerland	11	2.3%
7	India	10	2.1%
8	United Kingdom	9	1.9%
9	Egypt	7	1.5%
10	Australia	7	1.5%
11	Turkey	5	1.1%
12	Singapore	4	0.8%
13	Malaysia	4	0.8%
14	Mauritius	3	0.6%
15	Greece	3	0.6%
16	Poland	3	0.6%
17	Romania	3	0.6%
18	Russia	3	0.6%
19	Austria	3	0.6%
20	Canada	3	0.6%
21	Brazil	2	0.4%
22	Cyprus	2	0.4%
23	Mongolia	2	0.4%
24	Netherlands	2	0.4%
25	Argentina	1	0.2%