The attached chart has two squiggly lines. The top, red one shows the median monthly rent for all suites listed, averaged on a weekly basis, measured on the left-hand scale. You can see that advertised rents in November 2011 started out at about $1100 per month, and have gyrated around that figure since then.
The blue line at the bottom shows the number of advertisements per week. One can see a spike before the February 2010 Winter Olympics, but that on average, there's between 50-100 advertisements per week.
I have similar data for 2, 3, 4-bedroom apartments; if you're interested drop me a email and I'll post them too.
