A massive jump in refundings pushed long-term municipal bond volume up significantly through the first half of 2012. Issuance rose 65% through this June against the first six months of 2011, with refundings soaring 145% over the same span. Total long-term volume measured $192.9 billion in 6,888 issues through June, according to Thomson Reuters numbers. That compares with $117 billion in 4,859 deals in the first six months of 2011. Download the full report from The Bond Buyer.