Section 5. The salaries of county commissioners, payable by their respective counties in full for all services performed by said commissioners except as otherwise provided, shall be as follows:—

Middlesex………………………. $9,505.16

Essex……………………….8,799.73

Norfolk……………………….8,799.73

Worcester……………………….8,799.73

Bristol……………………….7,388.87

Hampden……………………….7,388.87

Barnstable……………………….6,683.44

Berkshire……………………….6,683.44

Plymouth……………………….6,683.44

Franklin……………………….5,272.58

Hampshire……………………….5,272.58

Dukes……………………….2,963.90