"If this portfolio represents market returns, my question was what were the market returns for the previous time periods?"

This is the latest Morningstar data (Return, Period and Rank in Category) for the three Total Market Index Funds in the 4-Fund Portfolio:

Vanguard Total Stock Market Index Fund (VTSMX)
RETURN------PERIOD-----RANK

9.39%............3-years.......Top 33%

8.52%............3-years.......Top 21% (after tax)

11.98%..........5-years.......Top 25%

11.30%..........5-years.......Top 18% (after tax)

4.29%..........10-years.......Top 32%

3.85%..........10-years.......Top 23% (after tax)

Vanguard Total International Stock Index Fund (VGTSX)
18.84%...........3-years.......Top 23%

17.88%...........3-years.......Top 14% (after tax)

22.39%...........5-years.......Top 23%

21.69%...........5-years.......Top 06% (after tax)

7.59%...........10-years.......Top 14%

6.94%...........10-years.......Top 11% (after tax)

Vanguard Total Bond Market Index Fund (VBMFX)
4.89%............3-years.......Top 12%

3.07%............3-years.......Top 13% (after tax)

4.29%............5-years.......Top 20%

2.59%............5-years.......Top 20% (after tax)

5.68%..........10-years.......Top 16%

3.58%..........10-years.......Top 14% (after tax)

Best wishes.

Taylor