The 1999 Consumer Reports New Car Buying Guide reported on the number of seconds required for a variety of cars to accelerate from 0 to 30 mph. The cars were also classified in six categories according to type and the boxplots of acceleration time is shown below. Approximately what percent of luxury cars accelerate to 30 mph in more than 3.5 seconds?

Type Upscale Sports Small Luxury Large Family 2.5 3.5 Acceleration Time (in seconds) 4.5