WASHINGTON (AP) — For the first time in two years, Americans actually got a little wealthier. Household wealth grew by $2 trillion, or about 4 percent, this spring, ending the longest stretch of quarterly declines on records dating back to 1952, the Federal Reserve reported Thursday. Net worth — the value of assets such as homes, checking accounts and investments minus debts like mortgages and credit cards — came to $53.1 trillion for the second quarter. Stock portfolios came back to life this spring after the market hit its lows for the year in March, and home prices have stabilized.