Home values “crept forward” in July. But not that it matters — the Case-Shiller Index is a better tool for economists than it is for homeowners. There’s 3 reasons why.

According to the Standard & Poors Case-Shiller Index, home values rose 5 percent in June versus the month prior, and 4 percent from a year earlier. It’s the 16th consecutive month in which Case-Shiller reported an increase in home values and the third straight month of outstanding results.

Standard & Poors released its Case-Shiller Index Tuesday. On a seasonally-adjusted basis, between April and May 2010, home prices rose in 19 of Case-Shiller’s 20 tracked markets. It’s the second straight month of strong Case-Shiller findings.