Pokemon based on innamate and/or man-made objects:
Gen 1:
>Grimer, Muk, Koffing, Weezing, Porygon, Magnemite, Magneton, Voltorb, Electrode, Ditto.
10 pokemon from 151 = 6,2%

Gen 2:
>Porygon 2, Wobbuffet, Unown
3 pokemon from 100 = 3%

Gen 3:
>Gulpin, Swalot, Lunatone, Solrock, Baltoy, Claydol, Wynaut, Chimecho
8 pokemon from 135 = 5,92 %

Gen 4:
>Bronzor, Bronzong, Magnezone, Porygon-Z, Probobpass, Rotom, Chingling
7 pokemon from 107 = 6,54 %

Gen 5:
>Siglyph, Trubbish, Garbodor, Vanillite, Vanillish, Vanilluxe, Klink, Klang, Klinklang, Litwick, Lampent, Chandelure, Cryogonal
13 pokemon from 156 = 8,3%

Gen 6:
>Honedge, Doublade, Aegislash, Swirlix, Slurpuff, Carbink, Klefki
7 pokemon from 72 = 9,7%

Gen 7:
>Comfey, Sandygast, Palossand, Minior, Dhelmise, Cosmog, Cosmoem, Xurkitree, Kartana
9 pokemon from 88 = 10,22%

Gen 8:
>Milcery, Alcremie, Sinistea, Polteageist, Stonjourner
5 pokemon from 89 = 5,61%

From biggest to smallest number on pokemon:

1. Gen 5 - 13
2. Gen 1 - 10
3. Gen 7 - 9
4. Gen 3 - 8
5. Gen 4 and 6 - 7
6. Gen. 8 - 5
8. Gen 2 - 3

From biggest to smallest percentage of pokemon:

1. Gen 7 - 10,22 %
2. Gen 6 - 9,7 %
3. Gen 5 - 8,3 %
4. Gen 4 - 6,54 %
5. Gen 1 - 6,2 %
6. Gen 3 - 5,92 %
7. Gen 8 - 5,61 %
8. Gen 2 -3 %

Did I miss something?