Highcharts display multiple lines (series) of data - highcharts

Question

I am trying to craete a chart with 4 lines of data. The issue I have is for wahtever reason I can't get the data to display.
My JSON:
[{"Average":["Apr","May","Jun","Jul"],"Good":["Apr","May","Jun","Jul"],"Excellent":["Apr","May","Jun","Jul"],"Not used":["Jan","Apr","May","Jun","Jul"]},{"name":"Poor","data":[1,2]},{"name":"Average","data":[1,1,4,1]},{"name":"Good","data":[1,1,4,1]},{"name":"Excellent","data":[1,1,4,1]},{"name":"Not used","data":[1,1,2,4,1]}]
My Code:
$(function () {
var categories=[];
var data2 =[];
var chart;
$(document).ready(function() {
$.getJSON("../charts/1-2-4-overall_year_chart.php?From=<?php echo $YearStart;?>&To=<?php echo $YearEnd;?>", function(json) {
$.each(json,function(i,el) {
if (el.name=="Month")
categories = el.data;
else data2.push(el);
});
$('#container1').highcharts({
chart: {
renderTo: 'container',
type: 'line',
marginTop: 25,
marginRight: 25,
marginBottom: 25,
plotBackgroundColor: '#FCFFC5',
style: {
fontFamily: 'serif',
fontSize: '8px',
}
},
title: {
text: ''
},
colors: [
'#ff0000',
'#f49004',
'#3abf05',
'#8b8c8a',
],
subtitle: {
text: ''
},
xAxis: {
categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
},
yAxis: {
title: {
text: 'Percentage %'
}
},
plotOptions: {
line: {
dataLabels: {
enabled: true
},
enableMouseTracking: false
}
},
series: [{
data2: [{
name: 'Detractor',
color: '#00FF00',
y: 1
}, {
name: 'Passive',
color: '#FF00FF',
y: 5
}]
}],
credits: {
enabled: false
},
lang: {
noData: "No data"
},
noData: {
style: {
fontWeight: 'normal',
fontSize: '12px',
color: '#303030'
}
},
});
});
});
});
Can anyone see where I am going wrong.
Many thanks in advance for your time.