Gas prices in Missouri have fallen 14 cents per gallon in the past week — part of a national trend leading toward lower gas prices for the next few months. The state’s average cost per gallon Monday was $2.29, compared to last week’s $2.43 average, according to a daily report by AAA. The national average was at $2.47, and 19 states saw prices under $2, according to GasBuddy.com, a market research firm that tracks fuel prices across the country. In Cape Girardeau and Scott City, prices ranged from $2.15 to $2.19 per gallon Monday. Perryville, Missouri, residents reported prices at $2.09 per gallon, and those in Bollinger County saw slightly higher prices of about $2.29 per gallon in Marble Hill. The national average now stands at its lowest point since April.