Training to Gain Levels

Edit: Updated

Level Attained	Training Time	Gold
2	10 days	30
3	10 days	90
4	10 days	180
5	20 days	300
6	20 days	500
7	20 days	800
8	20 days	1,200
9	20 days	1,700
10	20 days	2,300
11	30 days	3,000
12	30 days	3,800
13	30 days	4,700
14	30 days	5,700
15	30 days	6,800
16	30 days	8,000
17	40 days	9,300
18	40 days	10,700
19	40 days	12,500
20	40 days	15,000