EVE Online: B-R5BR put into context (# ships)

HTML

<script src="http://d3js.org/d3.v3.min.js"></script>
<h1>EVE Online January 2014 to February 5th 2014</h1>
<h2>Number of ships destroyed by solar system</h2>

<pre id="csvdata">
name,security,value
Amarr,1,7759
Ammold,1,378
Amsen,1,212
Bourynes,1,212
Chaven,1,348
Cistuvaert,1,458
Duripant,1,578
Emrayur,1,153
Hulm,1,89
Kisogo,1,609
Luminaire,1,398
New Caldari,1,915
Pator,1,408
Ryddinjorn,1,162
Sarum Prime,1,255
Sehmy,1,140
Todaki,1,438
Yulai,1,508
Ameinaka,0.99,74
Edmalbrurdus,0.99,25
Ikuchi,0.99,117
Malukker,0.99,2817
Todeko,0.99,24
Abrat,0.98,12
Meves,0.98,70
Sakenta,0.98,22
Aokannitoh,0.97,11
Athinard,0.97,82
Hirtamon,0.97,80
Kakakela,0.97,415
Kerepa,0.97,7
Todrir,0.97,8
Vullat,0.97,108
Arlek,0.96,30
Arlulf,0.96,45
Bhizheba,0.96,182
Embod,0.96,4081
Hedion,0.96,136
Ivar,0.96,109
Leurtmar,0.96,130
Loguttur,0.96,36
Niyabainen,0.96,449
Orgron,0.96,15
Safilbab,0.96,2
Urlen,0.96,1114
Alf,0.95,19
Assiad,0.95,10
Blameston,0.95,64
Eystur,0.95,473
Fildar,0.95,30
Hadaugago,0.95,7378
Hitanishio,0.95,93
Irnal,0.95,26
Jita,0.95,11989
Lustrevik,0.95,524
Malkalen,0.95,152
Mattere,0.95,72
Mies,0.95,222
Onga,0.95,102
Perimeter,0.95,2310
Tew,0.95,22
Unpas,0.95,247
Usteli,0.95,42
Yashunen,0.95,132
Claysson,0.94,25
Eletta,0.94,124
Ethernity,0.94,63
Hatakani,0.94,587
Mabnen,0.94,56
Magiko,0.94,55
Olbra,0.94,116
Sarekuwa,0.94,175
Seitam,0.94,8
Shesha,0.94,116
Algogille,0.93,709
Erego,0.93,4
Larkugei,0.93,24
Marthia,0.93,24
Mora,0.93,93
Nosodnis,0.93,15
Alenia,0.92,101
Horir,0.92,1
Kassigainen,0.92,363
Kehour,0.92,65
Laah,0.92,63
Lashkai,0.92,2
Olelon,0.92,16
Stirht,0.92,36
Tennen,0.92,62
Uitra,0.92,12258
Aldilur,0.91,27
Ansila,0.91,39
Arbaz,0.91,120
Ashab,0.91,593
Bongveber,0.91,30
Conoban,0.91,3167
Deepari,0.91,6970
Eba,0.91,31
Fora,0.91,18
Hanan,0.91,7
Illuin,0.91,33
Inis-Ilix,0.91,6
Kihtaled,0.91,44
Kor-Azor...

CSS

body {
    background: #202020;    
    font-family: Calibri;
    font-size: 12px;
}

h1 {
    font-size: 40px;
    color: #909090;
    margin: 2px;
}

h2 {
    font-size: 20px;
    color: #707070;
    margin: 0px;
}

#csvdata {
    display: none;
}    

.legendTitle
{
    fill: #F0F0F0;
}

.legend
{
    fill: #303030;
    alpha: 0.5;
}

JavaScript

/*
You may use this code for non-commercial purposes only, on the condition that the following copyright notice is displayed prominently on any page where the code appears:  

©2014 CCP hf.  EVE Online and the EVE logo are the registered trademarks of CCP hf. All rights are reserved worldwide. All other trademarks are the property of their respective owners. EVE Online, the EVE logo, EVE and all associated logos and designs are the intellectual property of CCP hf. All artwork, screenshots, characters, vehicles, storylines, world facts or other recognizable features of the intellectual property relating to these trademarks are likewise the intellectual property of CCP hf.
*/

function parseForBubble(root)
{
    var lst = [];
    root.forEach(function(n) { lst.push({value:parseInt(n.value), system:n.name,security:parseFloat(n.security) });});
    
    return {children:lst};
}

function plotBubbles(rootSvg, root) {
    var totalValue = d3.sum(root, function(d) {return d.value;});
    var valueDisplayLimit = totalValue * 0.005;
    
    var node = rootSvg.selectAll("systems")
        .data(bubble.nodes(parseForBubble(root)).filter(function(d) { return !d.children; }))
        .enter().append("g")
        .attr("class", "node")
        .attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
    
    //This adds a title which pops up when a mouse cursor hovers over the node
    node.append("title")
        .text(function(d) {  return d.system + "(" + format(d.security) + '): ' + formatLarge(parseInt(d.value)) + " Ships destroyed" });
    
    //The circle-element of the bubble 
    node.append("circle")
        .attr("r", function(d) { return d.r; })
        .style("fill", function(d) { return color(d.security); })
        .style("stroke", function(d) {return d3.rgb(color(d.security)).darker(); });
    
    //Text element containing the system name, do some truncating magic(shitmix)...
    node.append("text")
        .attr("dy", "3px")
       ...