This task involves annotating the answer type to a given question that involve some kind of complex reasoning (including numerical reasoning). Note that the questions require looking at more than one part of the passage to answer. There are 3 possible answer types (i) spans, (ii) numbers and (iii) dates. If the answer can be found in the passage, label it as "span". If the answer is a number, label as "number". Similarly, label "date" if you think the answer to the given question is a date.
Q: Passage: According to the 2016 American Community Survey, 78.1% of working Nashville residents commuted by driving alone, 9.8% carpooled, 2% used public transportation, and 2.2% walked. About 1.1% used all other forms of transportation, including taxicab, motorcycle, and bicycle. About 6.7% of working Nashville residents worked at home. In 2015, 7.9% of city of Nashville households were without a car; this figure decreased to 5.9% in 2016. The national average was 8.7 percent in 2016. Nashville averaged 1.72 cars per household in 2016, compared to a national average of 1.8 per household.
Question: What year had the most of Nashville households with a car, 2015 or 2016
A:
date