I'm going with other it is somewhere between 75% table food 25% breast milk and 50/50. That being said, with both DS and DD I was pregnant by the time they hit 18 months, so it hurt/hurts to nurse sometimes, so I tended to push solids a bit more.
I know by the time DS was 20 months or so it was around 90% solids because I had weaned him down to only nursing once a day, though once his sister was born when he was 23 months old he went back up to about 25% breast milk again.
With DD she just turned 18 months and is probably around 50/50 most days, but some days it is definitely closer to 75/25 and I am working on making it that most days, just because it hurts to nurse right now, so I prefer to do it only 2 to 4 times a day, not 20 times a day like DD would prefer.