Subject: How can I shoot water to its own height using natural air pressure?

Kind of hard to phrase a one-sentence question, but here's what I'm trying to 
do.  I fill to the rim a 5 gallon bucket with water.  I attach a hose to the 
bottom of the bucket.  I cover the end of the hose and prick a pin-hole in the 
covering.  I aim the hose towards the top of the bucket.  The water squirts 
out of the pin hole at the end of the hose but doesn't quite reach the top of 
the bucket.  Of course, the lower the opening of the hose, the longer the 
stream of water from the pin-hole.  My question:  Are there any changes I can 
make which would increase the pressure so the water from the pinhole squirts 
up to the top of the bucket.  I've tried short hoses, long hoses, 1/2" hoses, 
1" hoses -- even replaced the bucket with a huge funnel.  The 1" short hose 
with the 
funnel got the stream of water within 1" of the top of the bucket.  I'm so 
close yet so far.  What else can I do for the stream of water to reach the top 
of the bucket without adding any outside power source what so ever -- using 
only natural air pressure?  

Re: How can I shoot water to its own height using natural air pressure?