Elections

ELITE ERA (1789-1836)

1789180418201836
179218081824
179618121828
180018161832

VOLATILE ERA (1840-1908)

1840186018801900
1844186418841904
1848186818881908
185218721892
185618761896

PROGRESSIVE ERA (1912-1956)

1912192419361948
1916192819401952
1920193219441956

MODERN ERA (1960-2012)

1960197619922008
1964198019962012
196819842000
197219882004