I don't play every game or do the School/Gym/Elite Gym very much unless there is free training to be had. Here is two weeks of casual stat building for me. Some of the features are premium and I do have gift boxes to do some more often.

Two Week Total
Art 6
Balance 53
Charisma 67
Coordination 49
Defence 17
Geography 5
Health 20
History 3
Humanities 1
Language 8
Law 1
Level 24
Magic 60
Math 5
Music 3
Science 7
Speed 19
Sports 6
Stamina 54
Strength 21

Clock Tower
2 Defence
2 Health
5 Level
3 Speed
4 strength

Eleka Fountain
3 magic

Fortune Teller
1 Speed

Foxfire Pond
1 Art
1 Balance
4 Coordination
1 Defence
1 Geography
2 Level
1 Math
2 Music
1 Speed
2 Sport
1 Stamina
1 Strength

Genie
4 Magic

Guillotine
4 Charisma

Ice Caves
19 Magic

Murfin Madness
24 Charisma

Operations Portal
1 Defence
2 Health
5 Level
2 Speed
5 Strength

Pixie Dice
1 Balance
2 Level
2 Speed
1 Stamina

Poison Pit
1 Balance
1 Coordination
3 Defence
2 Health
1 Level
3 Speed
1 Stamina
3 Strength

Prize Drop
1 Defence
2 Health
1 History
1 Level
1 Speed

School
1 Charisma

Sewer Pipes
1 Balance
1 Speed

Simerian Statue
1 Geography
1 Language
1 Math
2 Music
1 Science
2 Sports

Sugar Stack
1 Balance
4 Coordination
1 Defence
1 Health
1 Level
4 Stamina
1 Strength

Sword
2 Charisma
6 Magic

Traps
8 Charisma

Venomous Victory
1 Defence
6 Health
1 Level
1 Speed
4 Strength

Vortex Park Reservoir
1 Art
2 Defence
2 Humanities
3 Language
3 Level
2 Math
1 Science

Wheel of Fortune
4 Defence
1 Geography
1 Law
1 Level
1 Science
1 Sports
1 Strength

Windmill
4 Health
2 Level
1 Strength
4 Speed

Whirlpool
2 Art
1 Balance
1 Defence
1 Geography
1 Health
1 Language
1 Math
1 Science
1 Strength

Echo
2 Art
1 Geography
2 History
3 Language
3 Science
3 Sports

Fairy Flight
17 Balance
16 Coordination
12 Stamina

Monty
14 Balance
9 Coordination
22 Stamina

Phantom Four
28 Charisma
28 Magic

Quack Mafia
17 Balance
15 Coordination
13 Stamina