How many trip vs How many trips

Some examples from the web:

• So... I cannot tell you how many trips I've had to cut short and hop on a plane.
• How many trips, stumbles, falls did you have?
• How many trips inside the house would that take?
• How many trips, stumbles, falls did you have?
• Well, how many trips has she made over there?
• How many trips to Strasbourg were made by Commission officials during 2006 for the Parliament's plenary sessions?
• Could the Agricultural Commissioner please advise me how many field trips he has undertaken during his period in office to date?
• All right, how many of those trip cameras you got up there?
• With Brick's shows getting lamer and lamer, I didn't know how many more pretend grocery trips I could get away with, without at least coming back with some groceries.
• And then one day the mother found... that his many trips were made to another family.
• It is international, many trips.
• You know, I try and drop as many trips as I can.
• Each of your many trips to Ulm already costs 15 Mark.
• My relations with my aunt force me to be on far too many trips.
• See how many supply ships made stops at the Astral Queen... after last Fisk's trip.
• I have been able to do this on many occasions, on the many trips I have made in recent months - as the honourable Members know - with the security leaders of the Palestinian Authority.
• Referring back to what I said in my previous remarks on the Congo, I wonder how many of the military junta have bank accounts in Western banks and enjoy shopping trips to London, Paris and Rome.
• How many EU fisheries companies keep a record of how many cetaceans are caught on every trip?
• You're about to trip within a trip into a trip within a trip.
• How many pages do I have to fill out just so you can go on a field trip to feed the homeless?

Some examples from the web:

• So... I cannot tell you how many trips I've had to cut short and hop on a plane.
• Well, how many trips has she made over there?
• How many trips, stumbles, falls did you have?
• How many trips, stumbles, falls did you have?
• How many trips inside the house would that take?
• How many trips to Strasbourg were made by Commission officials during 2006 for the Parliament's plenary sessions?
• Could the Agricultural Commissioner please advise me how many field trips he has undertaken during his period in office to date?
• All right, how many of those trip cameras you got up there?
• With Brick's shows getting lamer and lamer, I didn't know how many more pretend grocery trips I could get away with, without at least coming back with some groceries.
• And then one day the mother found... that his many trips were made to another family.
• It is international, many trips.
• You know, I try and drop as many trips as I can.
• Each of your many trips to Ulm already costs 15 Mark.
• My relations with my aunt force me to be on far too many trips.
• See how many supply ships made stops at the Astral Queen... after last Fisk's trip.
• I have been able to do this on many occasions, on the many trips I have made in recent months - as the honourable Members know - with the security leaders of the Palestinian Authority.
• Referring back to what I said in my previous remarks on the Congo, I wonder how many of the military junta have bank accounts in Western banks and enjoy shopping trips to London, Paris and Rome.
• How many EU fisheries companies keep a record of how many cetaceans are caught on every trip?
• You're about to trip within a trip into a trip within a trip.
• How many pages do I have to fill out just so you can go on a field trip to feed the homeless?