What are all pokémon that neither increase nor decrease stats while evolving?

For example:

Duosion and Renucleus have thebaseSpecial Attack stats at 120. Duosion evolves into Renucleus.

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Gen IPoliwag –> Poliwhirl (Speed Stat remains 90)

Gen IIChinchou –> Lanturn (Speed Stat remains 67)Sunkern –> Sunflora (Speed Stat remains 30)Misdrevus –> Mismagius (HP, Attack and Defense all remain 60)Scyther –> Scizor (Base Stat Total remain 500)Swinub –> Piloswine (Speed Stat remains 50)Phanpy –>Donphan (HP Stat remains at 90)

Gen IIIShroomish –> Breloom (HP and Sp.Def remain 60)Wailmer –> Wailord (Speed Stat remains 60)Barboach –> Whiscash (Speed Stat remains 60)Duskull –> Dusclops (Speed Stat remains 25)Bagon –> Shelgon (Speed Stat remains 50)

Gen IVCranidos –> Rampados (Speed Stat remains 58)Shieldon –> Bastiodon (Speed Stat remains 30)Burmy –> Wormadam (Speed Stat remains 36)

Gen VSewaddle –> Swadloon (Speed Stat remains 42)Swadloon –> Leavanny (Sp.Def Stat remains 80)Yamask –> Cofagrigus (Speed Stat remain 30)Duosion –> Reuniclus (Speed Stat remains 30)Klang –> Klinklang (HP, Sp.Atk and Sp.Def remain at 60, 70 and 85 respectively)

Gen VIEspurr –> Meowstic (Attack Stat remains 48)Doublade –> Aegislash(shield form) (Defence State remains 150)Bergmite –> Avalugg (Speed Stat remains 28)

Update for Gen 8