$lvlspan = [
	[40,2],
	[50,1.5],
	[60,2.5],
	[70,3.5],
	[80,5],
	[90,6.5],
	[100,9],
	[105,6],
	[110,7],
	[115,8],
	[120,10],
	[125,9.5],
	[130,10],
	[135,12],
	[140,13.5],
	[145,15],
	[150,18]
];