New York experienced a 7.8 percent jump in murders last year, though the number of homicides in the country’s largest city remained low on an historical basis as the overall major crime rate extended a decades-long drop, authorities said on Monday. The number of murders rose in 2019 to 318, the most since 2016, the New York Police Department said in its annual crime statistics report. Robberies, felony assaults and shootings also rose modestly in 2019, while the number of rapes and subway crimes declined.