Half Ironman santa cruz 70.3 candidates statistics

#!/usr/bin/awk -f
#
# awk -f vis.awk output/clean.csv
#

BEGIN {
        FS=","
        F_Count=0
        F_60_Plus=0
        F_50_to_60=0
        F_40_to_50=0
        F_30_to_40=0
        F_30_Minus=0

        M_Count=0
        M_60_Plus=0
        M_50_to_60=0
        M_40_to_50=0
        M_30_to_40=0
        M_30_Minus=0

        Less_than_me=0
        Less_than_me_M=0
        Less_than_me_F=0
}

{
    if($3 ~ /F/){
       # print $0
        F_Count++
        if ( $4 >= 60){
            F_60_Plus++
        } else if ($4 >= 50) {
            F_50_to_60++
        } else if ($4 >= 40) {
            F_40_to_50++
        } else if ($4 >= 30) {
            F_30_to_40++
        } else if ($4 < 30) {
            F_30_Minus++
        }
    } else {
        M_Count++
        if ( $4 >= 60){
            M_60_Plus++
        } else if ($4 >= 50) {
            M_50_to_60++
        } else if ($4 >= 40) {
            M_40_to_50++
        } else if ($4 >= 30) {
            M_30_to_40++
        } else if ($4 < 30) {
            M_30_Minus++
        }
    }

    if ($4 <28) {
        Less_than_me++
    }
    if ($4<28 && $3 ~ /F/) {
        Less_than_me_F++
    }
    if ($4<28 && $3 ~ /M/) {
        #print $0
        Less_than_me_M++
    }
}

END {
    print "-------------------------------------"
    print "Female counts: " F_Count
    print "Female age >=60: " F_60_Plus
    print "Female age between 50 to 60: " F_50_to_60
    print "Female age between 40 to 50: " F_40_to_50
    print "Female age between 30 to 40: " F_30_to_40
    print "Female age under 30: " F_30_Minus

    print "-------------------------------------"
    print "Male counts: " M_Count
    print "Male age >=60: " M_60_Plus
    print "Male age between 50 to 60: " M_50_to_60
    print "Male age between 40 to 50: " M_40_to_50
    print "Male age between 30 to 40: " M_30_to_40
    print "Male age under 30: " M_30_Minus
    print "-------------------------------------"
    print "Less than me: " Less_than_me
    print "Less than me female: " Less_than_me_F
    print "Less than me male: " Less_than_me_M
}