How not to skip the first element with .data()

Question

The data array contains exactly 5 objects.

The following code displays only the last 4, and skip the first :

d3.csv(csv_data, function(error, data){

  var table = d3.select("#div");

  var tr = table.selectAll("tr")
     .data(data)
     .enter()
     .append("tr");

  var td =  tr.selectAll("td")
     .data(function(d){return [d.x,d.y];})
     .enter()
     .append("td")
     .html(function(d){return d;});

});