Where can I find a chart of the daily supply?
Such a chart is trivial to create yourself by scraping blockchain.info. The following bash script will do just that:

#!/bin/bash
END=$(date -d 'today 00:00:00' +%s) # Today 00:00:00
START=1354147200 # Midnight 2012/11/29 (days after reward halving)
DIFF=86400 # Number of seconds in a day

for i in $(seq $START $DIFF $END); do
  # Blockchain.info uses milliseconds, hence the additional 0s
  BLOCKS=$(curl -s https://blockchain.info/blocks/${i}000 | grep '(Main Chain)' | wc -l)
  BLOCK_DATE=$(date +'%Y-%m-%d' -d @${i})
  echo $BLOCK_DATE, $BLOCKS
done


This iterates over all days since the block reward halving day (2012/11/28) and counts the blocks that have been mined on that day. The following plot shows the number of blocks per day. Multiply that by 25 and you get the daily supply of bitcoins entering the system.



Notice that the notion of day depends on the timezone you're in, and blockchain.info appears to use GMT timestamps. Also blockchain.info uses the timestamp included in the block, which might be off for up to 2 hours, but that should even out in the long run.

You can find the script and data here.