2,000 officers and oversaw a 40% decrease in the city's crime rate between 2001 and 2009. Specifically, homicide decreased by 57%, rape by 72%, and violent crime overall by 55%. Crime is down across the country, but Atlanta's improvement has occurred at more than twice the national rate. Nevertheless, Forbes ranked Atlanta as the sixth most dangerous city in the United States in 2012. Aggravated assaults, burglaries and robberies were down from 2014. Mexican drug cartels thrive in Atlanta. 145 gangs operate in Atlanta. The Atlanta Fire Rescue Department provides fire protection and first responder emergency medical services to the city from its 35 fire stations. In 2017, AFRD responded to over 100,000 calls for service over a coverage area of . The department also protects Hartsfield–Jackson with five fire stations on the property, serving over 1 million passengers from over 100 countries. The department protects over 3000 high-rise buildings, of the rapid rail system, and of interstate highway. Emergency ambulance services are provided to city residents by hospital-based Grady EMS (Fulton County), and American Medical Response (DeKalb County). Atlanta in January 2017 declared the city was a "welcoming city" and "will remain open and welcoming to all". Nonetheless, Atlanta does not consider itself to be a "sanctuary city". Atlanta Mayor Keisha Lance Bottoms said: "Our city does not support ICE. We don't have a relationship with the U.S. Marshal[s] Service. We closed our detention center to ICE detainees, and we would not pick up people on an immigration violation." Notable people Tree canopy Atlanta has a reputation as a "city in a forest" due to an abundance of trees that is rare among major cities. The city's main street is named after a tree, and beyond the Downtown, Midtown, and Buckhead business districts, the skyline gives way to a dense canopy of woods that spreads into the suburbs. The city is home to the Atlanta Dogwood Festival, an annual arts and crafts festival held one weekend during early April, when the native dogwoods are in bloom. The nickname is factually accurate, as vegetation covers 47.9% of the city as of 2017, the highest among all major American cities, and well above the national average of 27%. Atlanta's tree coverage does not go unnoticed—it was the main reason cited by National Geographic in naming Atlanta a "Place of a Lifetime". The city's lush tree canopy, which filters out pollutants and