As you know, you spend XP on advancement, reducing your XP total as you spend them. A skill rank or attribute rank costs 3 times the rank, and each must be purchased before the next can be (i.e. to go from STR 6 to STR 8, you have to pay for the costs of STR 7 and STR 8). Same with grades, although the cost there 10 times the grade you're purchasing (grade 6 costs 60 XP, for example).
The table below shows those figures cumulatively (i.e. how much you'll have spent in total):
[TABLE="width: 500"]
[TR]
[TD="align: center"]Rank[/TD]
[TD="align: center"]Skill/Attribute[/TD]
[TD="align: center"]Grade[/TD]
[/TR]
[TR]
[TD="align: center"]1[/TD]
[TD="align: center"]3[/TD]
[TD="align: center"]-[/TD]
[/TR]
[TR]
[TD="align: center"]2[/TD]
[TD="align: center"]9[/TD]
[TD="align: center"]-[/TD]
[/TR]
[TR]
[TD="align: center"]3[/TD]
[TD="align: center"]18[/TD]
[TD="align: center"]-[/TD]
[/TR]
[TR]
[TD="align: center"]4[/TD]
[TD="align: center"]30[/TD]
[TD="align: center"]-[/TD]
[/TR]
[TR]
[TD="align: center"]5[/TD]
[TD="align: center"]45[/TD]
[TD="align: center"]-[/TD]
[/TR]
[TR]
[TD="align: center"]6[/TD]
[TD="align: center"]61[/TD]
[TD="align: center"]60[/TD]
[/TR]
[TR]
[TD="align: center"]7[/TD]
[TD="align: center"]82[/TD]
[TD="align: center"]130[/TD]
[/TR]
[TR]
[TD="align: center"]8[/TD]
[TD="align: center"]106[/TD]
[TD="align: center"]210[/TD]
[/TR]
[TR]
[TD="align: center"]9[/TD]
[TD="align: center"]133[/TD]
[TD="align: center"]300[/TD]
[/TR]
[TR]
[TD="align: center"]10[/TD]
[TD="align: center"]163[/TD]
[TD="align: center"]400[/TD]
[/TR]
[TR]
[TD="align: center"]11[/TD]
[TD="align: center"]196[/TD]
[TD="align: center"]510[/TD]
[/TR]
[TR]
[TD="align: center"]12[/TD]
[TD="align: center"]232[/TD]
[TD="align: center"]630[/TD]
[/TR]
[TR]
[TD="align: center"]13[/TD]
[TD="align: center"]271[/TD]
[TD="align: center"]760[/TD]
[/TR]
[TR]
[TD="align: center"]14[/TD]
[TD="align: center"]313[/TD]
[TD="align: center"]900[/TD]
[/TR]
[TR]
[TD="align: center"]15[/TD]
[TD="align: center"]358[/TD]
[TD="align: center"]1050[/TD]
[/TR]
[/TABLE]
The table below shows those figures cumulatively (i.e. how much you'll have spent in total):
[TABLE="width: 500"]
[TR]
[TD="align: center"]Rank[/TD]
[TD="align: center"]Skill/Attribute[/TD]
[TD="align: center"]Grade[/TD]
[/TR]
[TR]
[TD="align: center"]1[/TD]
[TD="align: center"]3[/TD]
[TD="align: center"]-[/TD]
[/TR]
[TR]
[TD="align: center"]2[/TD]
[TD="align: center"]9[/TD]
[TD="align: center"]-[/TD]
[/TR]
[TR]
[TD="align: center"]3[/TD]
[TD="align: center"]18[/TD]
[TD="align: center"]-[/TD]
[/TR]
[TR]
[TD="align: center"]4[/TD]
[TD="align: center"]30[/TD]
[TD="align: center"]-[/TD]
[/TR]
[TR]
[TD="align: center"]5[/TD]
[TD="align: center"]45[/TD]
[TD="align: center"]-[/TD]
[/TR]
[TR]
[TD="align: center"]6[/TD]
[TD="align: center"]61[/TD]
[TD="align: center"]60[/TD]
[/TR]
[TR]
[TD="align: center"]7[/TD]
[TD="align: center"]82[/TD]
[TD="align: center"]130[/TD]
[/TR]
[TR]
[TD="align: center"]8[/TD]
[TD="align: center"]106[/TD]
[TD="align: center"]210[/TD]
[/TR]
[TR]
[TD="align: center"]9[/TD]
[TD="align: center"]133[/TD]
[TD="align: center"]300[/TD]
[/TR]
[TR]
[TD="align: center"]10[/TD]
[TD="align: center"]163[/TD]
[TD="align: center"]400[/TD]
[/TR]
[TR]
[TD="align: center"]11[/TD]
[TD="align: center"]196[/TD]
[TD="align: center"]510[/TD]
[/TR]
[TR]
[TD="align: center"]12[/TD]
[TD="align: center"]232[/TD]
[TD="align: center"]630[/TD]
[/TR]
[TR]
[TD="align: center"]13[/TD]
[TD="align: center"]271[/TD]
[TD="align: center"]760[/TD]
[/TR]
[TR]
[TD="align: center"]14[/TD]
[TD="align: center"]313[/TD]
[TD="align: center"]900[/TD]
[/TR]
[TR]
[TD="align: center"]15[/TD]
[TD="align: center"]358[/TD]
[TD="align: center"]1050[/TD]
[/TR]
[/TABLE]