Restrictions on religion across the world increased between mid-2009 and mid-2010, according to a 2012 study by the Pew Research Center. Restrictions in each of the five major regions of the world increased—including in the Americas and sub-Saharan Africa, the two regions where overall restrictions previously had been declining. In 2010, Egypt, Nigeria, the Palestinian territories, Russia, and Yemen were added to the "very high" category of social hostilities. The five highest social hostility scores were for Pakistan, India, Sri Lanka, Iraq, and Bangladesh. In 2015, Pew published that social hostilities declined in 2013, but the harassment of Jews increased.