It's interesting to see a decline in the total value of deals in Q4, despite the fact that both Groupon and Zynga had their IPOs in that quarter. I wonder whether there's any seasonality that typically affects these transactions or whether there was a bit of a slowdown from the previous few quarters.<p>It's also interesting that only $5.4 billion, or roughly 10% of the total value of deals, came from IPOs during the year. For all the attention IPOs get, most of the money is coming from somewhere else.