$num_respondents = 20000;
	$offset = 0;
	for $respondent (1 .. $num_respondents) {
		$sql = "INSERT INTO theTable VALUES ($respondent";
		for $response (1 .. $offset) {
			$sql = $sql.", 0";
		}
		$response = $offset + 1;
		while ($response < $num_responses+1) {
			$sql = $sql.", 1";
			if (($num_responses - $response) > 4) {
				$sql = $sql.", 0, 0, 0, 0";
			}
			else {
				for $response ($response+1 .. $num_responses) {
					$sql = $sql.", 0";
				}
			}
			$response = $response + 5;
		}
		if ($respondent % 2) {$sql = $sql.", 1, 0";}
		else {$sql = $sql.", 0, 1";}
		$sql = $sql.")";
		$sth = $dbh->prepare($sql) or die("Could not prepare!" . $dbh->errstr);
		print "<p>$sql\n";
		$sth->execute() or die("Could not execute!" . $dbh->errstr);
		if ($offset < 4) {$offset++;}
		else {$offset = 0;}
	}