Financial Trend Comparison of GS Bank

I'm going to compare the percentages of financial figures to the peer group average of GS Bank. Here's the percentage of total assets of non interest yielding cash and due from bank balances compared to the figures for the peer group average. (These charts I will be using have the y axis in percentages.) The information I've gathered comes from the FDIC.

Seems like GS Bank is very savvy since they have such little non yielding cash. I suppose they run the risk of not having cash when needed (say for like a bank run) but GS Bank has the backup of the big umbrella corporation GS. Besides, .25% of total assets of GS Bank is = more than $220M of cash and GS Inc has nearly $40B at that. The latest percentile rankings has GS Bank at 8. This seems like a rather benign idiosyncracy yet telling of the importance not to have non yielding cash.
Here's total investments which I define as interest bearing bank balances, fed funds sold and resales, trading account assets, held to maturity securities, and available for sale securities:

This is incredible for a "depository" and "lending" institution. Here are the latest percentiles: 95 in interest bearing bank balances and also in fed funds sold and resales; 99 in trading account assets, 35 in held to maturity securities, and just 3 in available for sale securities.

Above you see that fed funds (an extremely safe non risky investment) are going down at GS Bank from their extremely high levels. Better than holding cash, though it is. Below is the percentages of total investments minus the fed funds sold.