instruction:
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.
question:
Passage: The site of the current bridge is among several sites of a slave rebellion called the Stono Rebellion, one of the earliest known organized acts against slavery in the Americas.  On September 9, 1739, twenty black slaves raided a store near the bridge; in the process they killed two storekeepers and took guns and gunpowder. The bridge survived an attempt by Union forces to burn it during the American Civil War. Union troops floated burning rafts down to the Stono Bridge, hoping the wooden structure would catch fire and burn. However, their efforts were thwarted by a Lieutenant Smith, who along with members of a naval battalion, brought the rafts to shore. There have been several bridges in this location; the last variation was a two lane bridge 1,416 feet -long, which was built in 1928, and later refurbished in 1950. This swing-span drawbridge used a 156-foot -long steel-truss which left little room for even small vessels to pass beneath unless it was open.
Question: How many years passed between the bridge being built in 1928 and it being refurbished?
answer:
number


question:
Passage: As of the census of 2010, there were 31,894 people, 13,324 households, and 8,201 families residing in the city. The population density was . There were 14,057 housing units at an average density of . The racial makeup of the city was 93.9% White (U.S. Census), 0.3% African American (U.S. Census), 1.7% Native American (U.S. Census), 0.8% Asian (U.S. Census), 0.1% Race (U.S. Census), 0.7% from Race (U.S. Census), and 2.4% from two or more races. Hispanic (U.S. Census) or Latino (U.S. Census) of any race were 2.8% of the population.
Question: How many more housing units are there than families?
answer:
number


question:
Passage: Spending during the years Reagan budgeted (FY 1982–89) averaged 21.6% GDP, roughly tied with President Obama for the highest among any recent President. Each faced a severe recession early in their administration. In addition, the public debt rose from 26% GDP in 1980 to 41% GDP by 1988. In dollar terms, the public debt rose from $712 billion in 1980 to $2.052 trillion in 1988, a roughly three-fold increase.  The unemployment rate rose from 7% in 1980 to 11% in 1982, then declined to 5% in 1988. The inflation rate declined from 10% in 1980 to 4% in 1988.
Question: What year was the unemployment rate the highest?
answer:

date