Question: What was the combined Albania budget for health from 2007 to 2010?
SPARQL:
select sum(xsd:decimal(?amount)) as ?sum from <http://linkedspending.aksw.org/al_planned_budget_2007to2013> { ?obs qb:dataSet ls:al_planned_budget_2007to2013. ?obs lso:al_planned_budget_2007to2013-cofog1 <https://openspending.org/al_planned_budget_2007to2013/cofog1/health>. ?obs lso:al_planned_budget_2007to2013-amount ?amount. ?obs lso:refYear ?year. filter((year(?year)>=2007)&&year(?year)<=2010) }