West Bancorporation Inc., parent company of West Bank, reported a jump in net income in the first quarter to $4.4 million from $3.95 million in the same period last year, according to a release. Interest income increased 6.2 percent from a year ago, and loan volume grew by $82 million. President and CEO David Nelson attributed some of that growth to an office opened one year ago in Rochester, Minn. The West Bancorporation board has approved a dividend of 12 cents per share payable May 27 to shareholders of record on May 7. The dividend had been 11 cents per share for the past three quarters.