Figure 2.3 is a U.S. map showing percentages reporting past month use of any illicit drug among persons aged 18 to 25, by State, for 1999 and 2000. States listed here in alphabetical order within each group were divided into five groups based on the magnitude of their percentages. States in the highest group (18.78 to 26.98 percent) were Alaska, Colorado, Connecticut, Delaware, Maine, Massachusetts, New Hampshire, Oregon, Rhode Island, and Vermont. States in the next highest group (16.75 to 18.77 percent) were District of Columbia, Hawaii, Michigan, Montana, Nevada, New Jersey, New York, North Carolina, Washington, and Wisconsin. States in the mid group (15.31 to 16.74 percent) were California, Illinois, Indiana, Kentucky, Maryland, Minnesota, Missouri, New Mexico, Ohio, Pennsylvania, and Wyoming. States in the next lowest group (13.73 to 15.30 percent) were Alabama, Arkansas, Florida, Georgia, Kansas, Louisiana, Mississippi, Tennessee, Virginia, and West Virginia. States in the lowest group (9.84 to 13.72 percent) were Arizona, Idaho, Iowa, Nebraska, North Dakota, Oklahoma, South Carolina, South Dakota, Texas, and Utah.