Good Thursday morning. K Street’s first-quarter numbers are in, and it was a blowout. Ballard Partners once again topped the charts, posting more than $30 million in receipts over the first three months of the year — a nearly $2 million year-over-year increase that puts the firm just shy of $10 million ahead of runner-up BGR Group Founded by Brian Ballard, the firm has been a force in Washington for nearly a decade, but it vaulted to No. 1 follo…