Problem: The Demographics of Gabon is the makeup of the population of Gabon. As of , Gabon has a population of . Gabons population is relatively young with 35.5% of its population under 15 years of age and only 4.3% of its population over 65 years old. Gabon has a nearly even split between males and females with 0.99 males for every female in the population. In the age range of 15-65, the ration is exactly 1 male to 1 female. The life expectancy of Gabon is lower than the world average. Gabons populations life expectancy at birth is 53.11 years while the world average is 67.2 years as of 2010. Ethnically, the biggest group in Gabon are the Fang people with over 500,000 people, or about a third of Gabons population, belonging to this ethnic group. The biggest religion in Gabon is Christianity, with between 55-75% of the population of Gabon being Christian.
Answer this question based on the article: How many percentage points difference is there between the population under 15 years old and the population over 65?
A: 31.2

Problem: The Raiders made it to their fourth Super Bowl in team history after posting a 12-4 regular season record. Raiders quarterback Jim Plunkett completed 230 out of 379 (60.7 percent) passes resulting in 2,935 yards and 20 touchdowns. His favorite target was tight end Todd Christensen, who led the NFL with 92 receptions for 1,247 yards and 12 touchdowns. Wide receivers Cliff Branch and Malcolm Barnwell combined for 74 receptions, 1,209 yards, and 6 touchdowns. But the largest impact on offense was running back Marcus Allen. In just his second NFL season, Allen led the team in rushing yards (1,014) and total yards from scrimmage (1,604), while ranking second on the team in receptions (68) and touchdowns (11). But Allen was not the only key running back on the team. Kenny King (running back) and Frank Hawkins combined for 1,119 total rushing and receiving yards, and 10 touchdowns. Los Angeles also had a powerful special teams attack led by Greg Pruitt, who led the NFL in punt returns (58), and punt return yards (666), while adding another 604 yards returning kickoffs and rushing for 154 yards and two scores.
Answer this question based on the article: How many average yards did Jim Plunkett get per completed passes?
A: 12.76

Problem: The Rebellion of Arbanon in 1257-1259 was a revolt of the Principality of Arbanon against the Empire of Nicaea and in favour of the rival Despotate of Epirus. Arbanon had long been an autonomous principality within Epirus, and the Nicaean conquest around 1255 was resented. The rebellion was a reaction to the imposition of Nicaean rule in the person of governor Constantine Chabaron. The rebels were active in Durre, Ohrid, Debar and Mat. The Nicaean forces were under the command of George Akropolites, who described the events himself in his history. In the autumn of 1257, Akropolites left Thessaloniki and by way of Kastoria entered Kounavia, Mat and Debar in an effort to convince the local chieftains to abandon the Despot of Epirus, Michael II, and submit to imperial rule. Yet, in February 1258 the Nicaean garrisons were annihilated. Taking advantage of the situation, Michael II started his campaign against the Nicaeans and captured Chabaron in Kanina. The Albanians drove back the imperial troops sent as reinforcements and Akropolites set fresh troops in the move, opening his way to Ohrid and Prespa, but without having a chance to engage the rebels in the inner regions. He was forced to return to Prilep and fell captive to Michael II. The revolt was suppressed after troops from Asia Minor were sent in the spring of 1259, headed by John Komnenos. The most decisive battle was fought in the city of Devol. After suffering heavy losses, the Byzantines were finally able to control the situation, but in the years 1260-1270 the Albanian rulers revolted again in the region of Durres.
Answer this question based on the article: How many years did the Albanian rulers revolt again in Durres?
A:
10