If you point Highcharts at your key, you get an error 14. Looking at your sheet, it chokes on the second row "Total" since those numbers are formatted as strings. Fixing that in the sheet, and tweaking some of the parameters you can pass to Highcharts and your chart will start to take shape:
data: {
googleSpreadsheetKey: '18jFq7JiZI4wfj0SOMZh3fii1lquGF7NWJnmoFsXNJbM',
startColumn: 0,
endColumn: 5,
startRow: 0
},
Hopefully, that'll get you going, your chart still needs a bit more work (too many xAxis labels, the total column overwhelms the rest of the data, etc...)