Help!

confusion.js

var margin = {top: 20, right: 20, bottom: 30, left: 50},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;

var x = d3.time.scale()
    .range([0, width]);

var y = d3.scale.linear()
    .range([height, 0]);

var xAxis = d3.svg.axis()
    .scale(x)
    .orient("bottom")
    .ticks(d3.time.months)
    .tickSize(16, 0)
    .tickFormat(d3.time.format("%B"));

var yAxis = d3.svg.axis()
    .scale(y)
    .orient("left");

var line = d3.svg.line()
    .x(function(d) { return x(d.month); })
    .y(function(d) { return y(d.work); });

var svg = d3.select("#chart").append("svg")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
  .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

d3.tsv("../month.tsv", function(error, data) {
  data.forEach(function(d) {
  	d.month = +d.month;
    d.work = +d.work;
  });

  x.domain(d3.extend(data, function(d) {return d.month }));
  y.domain(d3.extent(data, function(d) { return d.work }));

  svg.append("g")
    .attr("class", "x axis")
    .attr("transform", "translate(0," + height + ")")
    .call(xAxis)
  .selectAll(".tick text")
    .style("text-anchor", "start")
    .attr("x", 6)
    .attr("y", 6);

  svg.append("g")
      .attr("class", "y axis")
      .call(yAxis)
    .append("text")
      .attr("transform", "rotate(-90)")
      .attr("y", 6)
      .attr("dy", ".71em")
      .style("text-anchor", "end")
      .text("Work");

  svg.append("path")
      .datum(data)
      .attr("class", "line")
      .attr("d", line);
});

And here is the .tsv file:

month work
0 24509
1 19466
2 18004
3 18381
4 17312
5 19926
6 24761
7 24815
8 24333
9 29117
10 24527
11 17478

I also saw this example for help:
http://bl.ocks.org/mbostock/1849162