1999 Summary Sample Design and Sample Size Information
Target Sample Sizes                     
              		                    
                                   All States         	 Mean for States
Number of States    	52                            
               Annual         	159,989		3075.4                   
               Monthly        	13327		256.3                

                    		Geographic Stratification          Density Stratification        All Stratification

States with More Than One Stratum                                

      Number of States         		21		43			48                   
      Total Number of Strata   		212		149			423                 
      Mean Number of Strata        		10.10		3.47			8.81                

All States                                  

       Number of States              		52                  	52                  		52
       Total Number of Strata     		242                	149                		427
       Mean Number of Strata     		4.65              	2.87               		8.21

Type of Sample Design         Number of States    Source of Sample                   Number of States

Disproportionate Stratified
Random  	                 47                    Behavioral Surveillance Branch, CDC     31
Waksberg Cluster                             2                    GENESYS Sampling Systems                  13
Other                                                 3                                  	Total GENESYS                    44
Total     	    52                   Survey Sampling, Inc.                              3
       	Wisconsin Survey Research Lab               3
	Other                    			  2
	Total     				         52