LANSING, Mich (WLMI)  Gas prices continue to fall. The latest numbers from the Lundberg Survey show the national average price of self-serve regular gas at $3.41 a gallon.  That was down nearly seven cents from the price on June 22nd. The current average price of regular gas is also down more than 20 cents from the same period a year ago. According to GasBuddy.com, the Lansing average this morning is $3.47 per gallon.