#comparative data

•26 years, 227 days: Eisenhower/Kennedy•22 years, 69 days: G.H.W. Bush/Clinton•17 years, 295 days: Buchanan/Lincoln•17 years, 46 days: W.H. Harrison/Tyler•15 years, 271 days: McKinley/T. Roosevelt•15 years, 265 days: Jackson/Van Buren•15 years, 51 days: Obama/Trump•15 years, 43 days: Taylor/Fillmore•15 years, 29 days: G.W. Bush/Obama•13 years, 238 days: Carter/Reagan•13 years, 214 days: Pierce/Buchanan•13 years, 126 days: Reagan/G.H.W. Bush•13 years, 119 days: A. Johnson/Grant•11 years, 79 days: Ford/Carter•10 years, 343 days: Polk/Taylor•9 years, 299 days: Van Buren/W.H. Harrison•9 years, 74 days: Monroe/J.Q. Adams•9 years, 46 days: Hayes/Garfield•8 years, 308 days: Wilson/Harding•8 years, 275 days: Kennedy/L. Johnson•7 years, 337 days: Jefferson/Madison•7 years, 173 days: Hoover/F. Roosevelt•7 years, 165 days: J. Adams/Jefferson•7 years, 164 days: Arthur/Cleveland•7 years, 43 days: Madison/Monroe•6 years, 243 days: Harding/Coolidge•6 years, 159 days: Truman/Eisenhower•5 years, 317 days: Cleveland/McKinley•5 years, 218 days: Tyler/Polk•5 years, 135 days: L. Johnson/Nixon•4 years, 320 days: Fillmore/Pierce•3 years, 250 days: Washington/J. Adams•3 years, 210 days: Cleveland/B. Harrison                          •2 years, 98 days: F. Roosevelt/Truman•2 years, 45 days: Garfield/Arthur•2 years, 37 days: Coolidge/Hoover•1 year, 42 days: T. Roosevelt/Taft•260 days: Taft/Wilson•187 days: Nixon/Ford•160 days: Grant/Hayes•118 days: J.Q. Adams/Jackson•45 days: Lincoln/A. Johnson•44 days: Clinton/G.W. Bush

I could definitely do that, but I'm just not sure if very many other people would be interested in that.  It's basically just using comparative data to look at the Presidents.  It's helpful to me and I always keep the data updated on my computer (in case I need to use it for something), but I don't know if anyone wants to look at it.