Final answer:
The question regarding the percentage of traffic fatalities occurring between 9 P.M. and 6 A.M. requires statistical data that wasn't provided. We would need data from a credible source to calculate the percentage, which involves dividing the number of nighttime fatalities by the total number of fatalities.
Step-by-step explanation:
The percentage of traffic fatalities that occurs between 9 P.M. and 6 A.M. is not directly provided in the reference information you've given. However, the question seems to be about statistical data on traffic accidents, specifically in relation to the time of day they occur. To answer this, we would typically consult a database or study that tracks traffic accident times, like the National Highway Traffic Safety Administration (NHTSA) in the United States, to determine the percentage of fatalities during those hours. If such data was provided, we would calculate the proportion by dividing the number of fatalities occurring between 9 p.m. and 6 a.m. by the total number of fatalities and then converting the result into a percentage.