A key gauge of US economic health rose for the fourth straight month in July, according to a private research group today, as the country continues to look for signs that its deepest recession in decades is over, according to dpa. The New York-based Conference Board's index of leading economic indicators rose 0.6 per cent on the month, following a 0.8-per-cent rise in June and 1.2-per-cent increase in May. "The indicators suggest that the recession is bottoming out, and that economic activity will likely begin recovering soon," said Ken Goldstein, a Conference Board economist.