Stats for 40 years ago would be out of the question as there is no database available, I can only go back to 2005.
This is a sample of what can be achieved:
Sire stats for Galileo
———————-
This query shows how the progeny of Galileo performed on their racecourse debuts in Great Britain and Ireland over distances more or equal to 7f and when their SP was 5/1 or less. You can change the Sire Name, add a new race distance or SP to suit any search you wish to perform on any sire on the Flat.
Result 73 records selected:
Wins – Runs 20 – 73 (27.4%)
£1 level stake: 1.5 (+2.1%)
Longest losing sequence: 9 runs