Member institutions of the Federal Home Loans Bank system had outstanding advances of $541.8 billion at Sept. 30, a slight sequential decline, but a 19.0 percent improvement from the same period a year ago, according to analysis by Inside The GSEs. The FHLBs said the growth in advances was primarily driven by higher demand from larger members. The megabanks, not surprisingly, continued to be the biggest clients of the system with JPMorgan Chase leading the pack at $79.5 billion worth of advances, followed by Wells Fargo ($68.7 billion), Citibank ($31.5 billion), PNC Bank ($17.1 billion) and Capital One ($16.3 billion).