I don't remember it ever doing that. But that may just be me.
You need to turn off Google Instant then go into Advanced Search in the left hand side menu and can then select the number of results to show.To disable Google Instant (assuming you are logged into Google), select Account settings then there is a link to search settings at the bottom of the account settings page.Obviously you will no longer have the Google Instant bit, but to some people that would be a bonus