Rising and falling cat names

How each name's share of registered cats changed between the first and last years of data in Toronto and Vancouver, averaged over the places.

Rising

Name	Change	Cats, early → late years
Mochi	7.9×	Toronto 9 → 63
Luna	4.5×	Toronto 114 → 389
Onyx	4.5×	Toronto 13 → 48
Maple	4.2×	Toronto 14 → 48
Ivy	3.5×	Toronto 18 → 50
Penelope	3.0×	Toronto 24 → 56
Storm	2.9×	Toronto 20 → 46
Loki	2.6×	Toronto 53 → 104
Momo	2.6×	Toronto 23 → 46
Ash	2.5×	Toronto 23 → 45
Biscuit	2.2×	Toronto 25 → 43
Ollie	2.1×	Toronto 35 → 56
Kiwi	2.0×	Toronto 34 → 52
Salem	1.8×	Toronto 51 → 71
Mango	1.8×	Toronto 34 → 46
Leo	1.8×	Toronto 150 → 200
Nala	1.8×	Toronto 68 → 91
Milo	1.7×	Toronto 128 → 160
Gigi	1.7×	Toronto 27 → 34
Hazel	1.7×	Toronto 28 → 35
Mocha	1.6×	Toronto 43 → 53
Olive	1.6×	Toronto 38 → 45
Archie	1.6×	Toronto 33 → 39
Pearl	1.6×	Toronto 28 → 33
Theo	1.6×	Toronto 29 → 34
Willow	1.5×	Toronto 80 → 88
Piper	1.5×	Toronto 29 → 32
Lady	1.5×	Toronto 30 → 33
Star	1.5×	Toronto 31 → 34
Poppy	1.4×	Toronto 62 → 66
Ellie	1.3×	Toronto 33 → 33
Lulu	1.3×	Toronto 50 → 49
Mia	1.3×	Toronto 98 → 93
Ruby	1.3×	Toronto 55 → 52
Cinnamon	1.3×	Toronto 34 → 32
Harry	1.3×	Toronto 50 → 47
Lily	1.2×	Toronto 162 → 150
Oreo	1.2×	Toronto 140 → 129
Pixie	1.2×	Toronto 35 → 32
Scout	1.2×	Toronto 33 → 30

Falling

Name	Change	Cats, early → late years
Blackie	0.02×	Toronto 126 → 0
Mickey	0.02×	Toronto 109 → 0
Jasmine	0.03×	Toronto 88 → 0
Jake	0.03×	Toronto 84 → 0
Samantha	0.03×	Toronto 81 → 0
Katie	0.03×	Toronto 78 → 0
Sassy	0.04×	Toronto 67 → 0
Bob	0.04×	Toronto 66 → 0
Lilly	0.04×	Toronto 66 → 0
Snowball	0.04×	Toronto 66 → 0
Casey	0.04×	Toronto 64 → 0
Ebony	0.04×	Toronto 63 → 0
Tucker	0.04×	Toronto 63 → 0
Dusty	0.19×	Toronto 89 → 11
Rocky	0.25×	Toronto 99 → 17
Harley	0.28×	Toronto 71 → 13
Roxy	0.30×	Toronto 69 → 14
Henry	0.31×	Toronto 86 → 18
Patches	0.31×	Toronto 170 → 38
Sammy	0.33×	Toronto 159 → 37
Tigger	0.33×	Toronto 276 → 66
Monty	0.36×	Toronto 58 → 14
Bonnie	0.38×	Toronto 48 → 12
Murphy	0.38×	Toronto 51 → 13
Tiger	0.38×	Toronto 344 → 96
Belle	0.38×	Toronto 54 → 14
Kitty	0.39×	Toronto 235 → 67
Emma	0.39×	Toronto 107 → 30
Maggie	0.40×	Toronto 161 → 46
Buddy	0.40×	Toronto 238 → 69
Smokey	0.40×	Toronto 339 → 99
Precious	0.40×	Toronto 55 → 15
Romeo	0.40×	Toronto 55 → 15
Bobby	0.40×	Toronto 58 → 16
Whiskey	0.41×	Toronto 51 → 14
Sushi	0.41×	Toronto 50 → 14
Molly	0.42×	Toronto 278 → 85
Buster	0.42×	Toronto 113 → 34
Missy	0.42×	Toronto 188 → 58
Sam	0.43×	Toronto 189 → 59

"Early" and "late" are the first two and last two years with enough data in each place. The change is relative to all cats registered in those years.