See the pattern here
$8.70 $13.10
$11.70 $15
$3.25 $4.65
$3.70 $4.65
$3.20 $4.65
$9.20
$6.70 $10
$8
$4.95
$19.70 $38
$38
$13.10
$19
$58 $83
$11.90 $14
$32
$22
$12.40 $15
$9.20 $13.10
$15
$14
$14.70 $19.10
$15.30 $19.10