#Fri Mar 8 14:57:35 PST 1996 addr: 152.163.193.26 query:  pid: 25493

cat log.access.old |
awk '
    {
	dec_date = $6+month_to_frac($2)
	if (dec_date < 2001) {
		print dec_date
	}
    }

    function month_to_frac(month) {
	if (month == "Jan") {
	    return(0)
	} else if (month == "Feb") {
	    return(1/12)
	} else if (month == "Mar") {
	    return(2/12)
	} else if (month == "Apr") {
	    return(3/12)
	} else if (month == "May") {
	    return(4/12)
	} else if (month == "Jun") {
	    return(5/12)
	} else if (month == "Jul") {
	    return(6/12)
	} else if (month == "Aug") {
	    return(7/12)
	} else if (month == "Sep") {
	    return(8/12)
	} else if (month == "Oct") {
	    return(9/12)
	} else if (month == "Nov") {
	    return(10/12)
	} else if (month == "Dec") {
	    return(11/12)
	}
    }
' | sort | uniq -c | awk '{print $2, $1}' | sort -n