Until otherwise provided by law, the officers of the State shall receive annually as compensation for their services, the following sums:

The Governor, four thousand, five hundred dollars; Lieutenant Governor, one thousand dollars; Secretary of State, two thousand, five hundred dollars; Attorney General, four thousand dollars; State Treasurer, three thousand dollars; State Auditor, two thousand, five hundred dollars; State Examiner and Inspector, three thousand dollars; Chief Mine Inspector, three thousand dollars; Labor Commissioner, two thousand dollars; Commissioner of Charities and Corrections, one thousand, five hundred dollars; Corporation Commissioners, four thousand dollars each; Superintendent of Public Instruction, two thousand, five hundred dollars; the Insurance Commissioner, two thousand, five hundred dollars.