The following table is just the 8 stallions who fetch a service fee of $99,000 + in Australia
These 8 alone collected nearly $200,000,000
There are another 20 stallions with service fees between $88,000 and $44,000 with books of around 150
so that is about another $200,000,000
There are another 83 stallions with service fees between $38,500 and $9,900 with books of on average over 100 which might come close to another $200,000,000
Thanks to
http://www.studbook.org.au/Default.aspx
For the statistics
per un PUGNO di DOLLARI