interval  BAI
"66-68"   1.91
"66-68"   1.53
"66-68"   2.08
"66-68"   1.71
"69-71"   2.44
"72-74"   2.45
"72-74"   2.04
"72-74"   1.60
"72-74"   2.37
"75-77"   2.52
"75-77"   2.36
"75-77"   2.73
"78-80"   2.78
"78-80"   2.88
"78-80"   2.10
"78-80"   1.66