instruction:
This task involves creating questions from a given passage that involve some kind of complex reasoning (including numerical reasoning). 
The generated questions must require looking at more than one part of the passage to answer. Try to use a variety of reasoning types in your questions (some of the sample reasoning types are illustrated in the 'positive examples' field) and also have a variety of answer types (spans, numbers, dates). A span is a continuous phrase taken directly from the passage or question. In such questions, the answer spans are recommended to be five words. Questions with answer type "number", are expected to start with "How many". For instance, "How long did an event last?" can be phrased as "How many years did an event last?". To increase diversity, try to create more questions for which the answer will be multiple spans. Please create questions that require AT LEAST 2 arithmetic operations as illustrated in the 'positive examples' field. You are encouraged to try DIFFERENT COMBINATIONS of operations and not just limit to the combinations shown in those examples. The more challenging questions you create, the better it is.
question:
Passage: Over the years the city has been home to people of various ethnicities, resulting in a range of different traditions and cultural practices. In one decade, the population increased from 427,045 in 1991 to 671,805 in 2001. The population was projected to reach 915,071 in 2011 and 1,319,597 by 2021. To keep up this population growth, the KMC-controlled area of  has expanded to  in 2001. With this new area, the population density which was 85 in 1991 is still 85 in 2001; it is likely to jump to 111 in 2011 and 161 in 2021.
answer:
How many more people populated the city in 2001 than in 1991?


question:
Passage: Against the Baltimore Ravens in week twelve, the Bears wore their 1940s alternate uniforms. The Bears last played the Ravens in 2009, which ended with a Baltimore 31-7 victory. With Jay Cutler still out, Josh McCown continued to play as quarterback for the Bears, who had the eighth-best passing offense in the league with 261.7 yards per game, which competed against the Ravens' 18th-ranked pass defense. On the ground, the Ravens had the tenth-best rushing D with 102.6 rushing yards allowed per game, but offensively, had the 30th-ranked rushing offense, averaging just 73.1 yards per game, going against Chicago's defense which allowed 129.4 rushing yards per game. Against Joe Flacco, the Bears had the opportunity to force turnovers, as Flacco had thrown eleven interceptions in the previous nine games. For the Bears on offense, a liability was to protect McCown from Terrell Suggs and Elvis Dumervil, who combined for 17 of 32 sacks by the Ravens. Two parties had the majority favoring the Bears for the game: 10 of 13 ESPN analysts predicted a Bears victory, with Ron Jaworski, Seth Wickersham and Cris Carter being the only three to predict a win for Baltimore. CBS Sports analysts predicted the Ravens would win in a 5-4 vote. The Ravens opened the game with Ray Rice gaining a 47-yard run, his longest of the year up to that point (his previous highest in 2013 was 14 yards), which led to Rice's 1-yard run with 9:58 in the first. The Ravens added to the score with Justin Tucker's 52-yarder, bringing the score to 10-0. With 4:51 left in the first quarter, the game was suspended due to inclement weather, which included a tornado watch, which was eventually elevated to a tornado warning. Fans were ordered to evacuate the stands and enter the covered concourses, while the teams returned to the locker rooms. The evacuation marked the first time Soldier Field had an evacuation since the stadium's opening in 1921. The game resumed play at 3:25&#160;p.m. ET, after a 1-hour, 53 minute-delay. In the second quarter, Robbie Gould kicked a 20-yard field goal, and eventually, rookie defensive end David Bass escaped a chop block by Rice and intercepted Flacco, scoring on a 24-yard return and tying the game. The Ravens eventually scored on Torrey Smith's five yard touchdown catch, and after Flacco had a pass intercepted by Jon Bostic, Gould ended the half kicking a 46-yarder. After a scoreless third period, Matt Fort&#233; caught a 14-yard pass from McCown and scored with 10:33 in the fourth, the Bears finally taking the lead 20-17. Now behind by three, the Ravens engineered an 82-yard drive to Chicago's 2-yard line, but Rice failed to score twice, and a botched snap from Gino Gradkowski slowed down the Ravens, and Flacco's pass towards Smith was overthrown. As a result, the Ravens resorted to a 21-yard field goal with three seconds in regulation to force overtime. In overtime, Flacco's pass for Tandon Doss fell incomplete, and the Ravens punted to the Bears. McCown then completed a 43-yard pass to Martellus Bennett, and Gould kicked the game-winning 38-yard field goal with 8:41 remaining to win the game 23-20, which lasted five hours, 16 minutes.
answer:
How many interceptions did Joe Flacco throw in the first half?


question:
Passage: The 2-1 Lions returned home in Week 4 to face the 3-0 Chicago Bears. Robbie Gould started the scoring for the Bears with a 34-yard field goal, but field goals of 23 and 31 yards by David Akers put the Lions up 6-3. Early in the second quarter, Matt Fort&#233; exploded for a 53-yard touchdown run to put Chicago back up, 10-6. The lead was narrowed to 10-9 when Akers connected on a 41-yard field goal. The Lions then reeled off three straight touchdowns in the span of three and a half minutes. Set up by a 57-yard punt return from Micheal Spurlock, Matthew Stafford scored first when he recovered his own fumble in the end zone following a 1-yard quarterback sneak. On Chicago's next possession, Jay Cutler's second interception of the day was returned by Glover Quin 42 yards, to the Bears 2. One play later, Stafford hit Calvin Johnson in the corner of the end zone for a 2-yard TD. On the Lions next possession, Reggie Bush scored on a 37-yard TD run, hurdling Bears safety Major Wright on his way to the end zone. Robbie Gould closed the half with a 28-yard field goal that made the score 30-13. Gould would connect again on a 25-yarder in the third quarter to get the Bears within two touchdowns. On Chicago's next possession, Ndamukong Suh forced a Jay Cutler fumble, then Nick Fairley scooped up the ball and took it the remaining 4 yards for the score to give Detroit a 37-16 lead. David Akers extended it to 40-16 on a 43-yard field goal in the fourth quarter. The Bears attempted a furious rally in the final minutes.  Cutler hit Alshon Jeffery on a 14-yard TD pass with four minutes left, then connected with Jeffery again for a 2-point conversion to make the score 40-24. On a potential clock-killing drive, Lions running back Joique Bell lost a fumble, and the Bears took advantage with another Cutler TD pass - this one going 10 yards to Earl Bennett. After another successful 2-point conversion, Chicago was within one score, 40-32. But Detroit's Kris Durham recovered the ensuing onside kick to preserve the victory. After throwing just one interception in eight previous games against the Lions, Jay Cutler threw three picks in this game, two of them being grabbed by Lions safety Louis Delmas. Reggie Bush rushed 18 times for 139 yards, and had another 34 yards on four receptions.
answer:

How many combined yards did Robbie Gould kick for field goals?