I am going through the JSON that is resulting from calling the stackexchange User Profile api.

I see a bunch of reputation fields.

private Number reputation;
private Number reputation_change_day;
private Number reputation_change_month;
private Number reputation_change_quarter;
private Number reputation_change_week;
private Number reputation_change_year;

What are all these for? Obviously i know what the reputation is, but the others have me a bit fooled.