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Library Upgrades
| Level bfmhfansite.com | Cost | Bonus |
|---|
1
| 900
900
300
| 1
|
2
| 1,800
1,800
600
| 2
|
3
| ?
?
?
| ?
|
4
| 4,100
4,100
1,400
| 4
|
5
| 10,100
10,100
3,400
| 5
|
6
| 20,300
20,300
6,800
| 6
|
7
| 40,500
40,500
13,500
| 7
|
8
| 81,000
81,000
27,000
| 8
|
9
| 121,600
121,600
40,600
| 9
|
10
| 182,300
182,300
60,800
| 10
|
