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.

Passage: According to the Stockholm International Peace Research Institute, between 2005-2009 and 2010-2014, Russian exports of major weapons increased by 37 percent; Russia spent $66.4 billion on arms in 2015, then $69.2 billion in 2016, having taken 3rd place (after the U.S. and China).  According to the Russian Defence Ministry, share of modern weapons in the Armed Forces reached from 26 to 48 percent among different kinds of troops in December 2014. This was raised to 30.5–70.7% as of July 2015. The average was 58 per cent over the first half of 2017.
Did the share of modern weapons in the Armed Forces increase or decrease between 2014 and 2015?

Passage: Following an impressive win over the Panthers, the Texans went home for an AFC South duel with the defending Super Bowl champions, the Indianapolis Colts (who Houston won against last time at home).  In the first quarter, the Texans delivered the first punch with WR Jerome Mathis returning a kickoff 84 yards for a touchdown.  However, the Colts responded with QB Peyton Manning completing a 2-yard TD pass to TE Dallas Clark.  In the second quarter, Houston retook the lead with kicker Kris Brown getting a 33-yard field goal.  However, Indianapolis went ahead with RB Joseph Addais 4-yard TD run. In the third quarter, the Colts managed to put the Texans in a huge hole with kicker Adam Vinatieri's 36-yard field goal, Addai's 8-yard TD run, and Vinatieri's 28-yard field goal.  In the fourth quarter, Houston tried a comeback with RB Samkon Gado's 1-yard TD run.  Indianapolis would get their final score of the game with Vinatieri kicking a 35-yard field goal.  The Texans drew close with QB Matt Schaub's 1-yard TD pass to RB Vonta Leach.  However, the Colts managed to hold on to win.
How many field goals did Adam Vinatieri kick?

Passage: Teasdale and Owen (2005) examined the results of IQ tests given to Denmark male conscripts. Between 1959 and 1979 the gains were 3 points per decade. Between 1979 and 1989 the increase approached 2 IQ points. Between 1989 and 1998 the gain was about 1.3 points. Between 1998 and 2004 IQ declined by about the same amount as it gained between 1989 and 1998. They speculate that "a contributing factor in this recent fall could be a simultaneous decline in proportions of students entering 3-year advanced-level school programs for 16-18-year-olds." The same authors in a more comprehensive 2008 study, again on Danish male conscripts, found that there was a 1.5-point increase between 1988 and 1998, but a 1.5-point decrease between 1998 and 2003/2004. A possible contributing factor to the more recent decline may be changes in the Danish educational system. Another may be the rising proportion of immigrants or their immediate descendants in Denmark. This is supported by data on Danish draftees where first or second generation immigrants with Danish nationality score below average.

How many years passed 1989-1998 when the IQ points were 1.3?