The government said Tuesday it has revised downward its key gauge of the state of the economy for April due to weak production data.

The revision leaves the index below the boom-or-bust line of 50 percent for the fourth straight month.

The Cabinet Office said the index of coincident indicators was revised to 10 percent for April from a preliminary 14.3 percent, hit mainly by weaknesses in sales of small and midsize manufacturers and in consumption of raw materials in the manufacturing sector.