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Percentage of public schools operating on any type of 12-month cycle and percentage of schools with all students attending on the same year-round cycle, by state: 1999–2000, 2003–04

  Percent of schools operating on any type of 12-month cycle   Percent of schools with all students attending the same year round cycle  
State 1999–2000   2003–04   1999–2000   2003–04  
United States 6.1   5.5   3.6   4.3  
                 
Alabama 5.7   6.4 ! 5.7   6.4 !
Alaska 3.3 !   3.0 !  
Arizona 18.1   7.8   16.9   7.8  
Arkansas   2.1 !   2.1 !
California 21.8   17.8   4.1   10.7  
                 
Colorado 6.5   7.8   2.7 !  
Connecticut 3.5 ! 5.0 ! 3.5 ! 5.0 !
Delaware 6.1 ! 2.6 ! 6.1 !  
District of Columbia 15.1   8.9   15.1   9.7  
Florida 4.5   9.3   3.1 ! 7.5  
                 
Georgia     0.1    
Hawaii 36.7   45.7   36.7   44.1  
Idaho 2.5 !   1.5 !  
Illinois 5.1 ! 2.7 ! 3.9 ! 3.2 !
Indiana        
                 
Iowa   #     #  
Kansas 3.9 ! #   3.8 ! #  
Kentucky 11.5   9.2   11.5   9.2  
Louisiana 6.7   8.4   6.7   7.3 !
Maine        
                 
Maryland 3.9 !   3.9 !  
Massachusetts 3.3 !   3.3 !  
Michigan 6.4 ! 6.3 ! 6.3 ! 5.4 !
Minnesota 5.5 !   0.8    
Mississippi 6.7   4.8 ! 6.7   4.8 !
                 
Missouri 6.3 ! 5.0 ! 4.3 ! 5.0 !
Montana 2.2 !   2.2 !  
Nebraska 2.7 !      
Nevada 25.5   16.7   8.3    
New Hampshire   #     #  
                 
New Jersey 3.5 !   3.5 !  
New Mexico   3.1 !   3.1 !
New York 5.8     5.1    
North Carolina 7.6   4.7 ! 4.0 !  
North Dakota        
                 
Ohio 1.1 !   1.1 !  
Oklahoma 4.3 ! 3.6 ! 3.7 ! 3.6 !
Oregon        
Pennsylvania 0.2     0.2    
Rhode Island 4.3     4.3    
                 
South Carolina 4.0 ! 6.1 ! 4.0 ! 5.8 !
South Dakota 0.6   1.8 ! 0.6   1.8 !
Tennessee 5.3 ! 5.3 !   3.8 !
Texas 3.6 ! 5.0   3.1 ! 4.6 !
Utah 12.4   9.4 !    
                 
Vermont #     #    
Virginia   2.5 !   1.9 !
Washington        
West Virginia        
Wisconsin        
Wyoming 2.7     2.2 !  
# Rounds to zero.
! Interpret data with caution. The coefficient of variation (CV) for this estimate is between 30 percent and 50 percent (i.e., the standard error is at least 30 percent and less than 50 percent of the estimate).
‡ Reporting standards not met. The coefficient of variation (CV) for this estimate is 50 percent or greater (i.e., the standard error is 50 percent or more of the estimate) or the response rate is below 50 percent.
SOURCE: U.S. Department of Education, National Center for Education Statistics, Schools and Staffing Survey (SASS), "Public School Data File," 1999–2000 and "Public School Data File," 2003–04.