KHJ Boss Radio - Record Data by Year

The table below shows the frequency and longevity of records that made the Boss 30.

I'll use 1965 as an example. There were 116 records that debuted on the Boss 30 in 1965. Week No. 1 will always be 100%. Of those 116 records, 111 made it to a second week on the survey. That's 95.7%. The rest of the weeks follow this pattern. (Note: there were only 26 surveys issued in 1965.)

KHJ was firing on all cylinders in 1968. The song turnover was rapid and new music kept the juices flowing. There were 287 records that debuted in 1968 for an average of 5.5 new records per week. Only 2.4% of the records lasted nine weeks or longer. Boss Radio at its apex.

The turnover rate slowed quite a bit in 1971 and 1972. It totally crashed in 1973. Only 162 records debuted in 1973. While only 2.4% of the records lasted nine weeks or longer in 1968, that number was up to a whopping 61.7% in 1973. Songs were lasting 19 weeks on the survey. Boss Radio, as we knew it, was history.

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  Weeks on Survey
1965 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Total / Week 116 111 103 98 87 81 64 51 39 25 10 5 1 1
% of Total 100.0 95.7 88.8 84.5 75.0 69.8 55.2 44.0 33.6 21.6 8.6 4.3 0.9 0.9
Avg New / Wk 4.5  
 
1966 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Total / Week 248 243 225 204 187 154 127 84 49 29 12 4 1
% of Total 100.0 97.8 90.7 82.3 75.4 62.1 51.2 33.9 19.8 11.7 4.8 1.6 0.4
Avg New / Wk 4.8  
 
1967 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Total / Week 276 269 250 231 197 151 100 51 16 6 3 2
% of Total 100.0 97.5 90.6 83.7 71.4 54.7 36.2 18.5 5.8 2.2 1.1 0.7
Avg New / Wk 5.3  
 
1968 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Total / Week 287 287 280 251 206 138 68 28 7 4 3 1
% of Total 100.0 100.0 97.6 87.5 71.8 48.1 23.7 9.8 2.4 1.4 1.1 0.4
Avg New / Wk 5.5  
 
1969 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Total / Week 258 258 255 231 198 159 111 73 41 17 9 2 2
% of Total 100.0 100.0 98.8 89.5 76.7 61.6 43.0 28.3 15.9 6.6 3.5 0.8 0.8
Avg New / Wk 4.9  
 
1970 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Total / Week 237 236 223 197 174 148 123 97 69 38 20 4
% of Total 100.0 99.6 94.1 83.1 73.4 62.5 51.9 40.9 29.1 16.0 8.4 1.7
Avg New / Wk 4.6  
 
1971 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Total / Week 208 208 203 196 174 156 138 107 81 57 38 22 9
% of Total 100.0 100.0 97.6 94.2 83.7 75.0 66.4 51.4 38.9 27.4 18.3 10.6 4.3
Avg New / Wk 4.0  
 
1972 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Total / Week 192 190 186 174 165 152 133 112 88 71 48 29 13 9 5 2
% of Total 100.0 99.0 96.9 90.6 85.9 79.2 69.3 58.3 45.8 37.0 25.0 15.1 6.8 4.7 2.6 1.0
Avg New / Wk 3.7  
 
1973 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Total / Week 162 162 160 153 148 139 128 112 100 81 73 59 44 28 26 18 7 5 3
% of Total 100.0 100.0 98.8 94.4 91.4 85.8 79.0 69.1 61.7 50.0 45.1 36.4 27.2 17.3 16.1 11.1 4.3 3.1 1.9
Avg New / Wk 3.1