barchart = BarChart(data, {
x: d => d["Year"],
y: d => d["3PTA"],
title: undefined,
xLabel: "Country",
yLabel: "Forested Area (% of land area)",
yDomain: [0, d3.max(data, function(d) { return d['3PTA']; })],
width: 1000,
height: 300,
marginBottom: 150,
marginRight: 150,
rotate: true
})