HOLLAND, MI (WHTC) - The teeter-totter of gasoline prices along the Lakeshore continues, as this morning’s survey of Holland area stations that showed a per-gallon average of $3.49 was 18 cents more what motorists were paying around town last Friday. It’s the fourth straight week in which the mean had alternated between higher and lower than the previous level. Triple-A’s daily polling had marks of $3.43 nationally and $3.50 statewide.