              step: "all"
                            }
                        ]
                    },
                    rangeslider: {
                        autorange: true
                    },
                    type: "date"
                },
                yaxis: {
                    autorange: true,
                    type: "linear",
                    title: "Gas consumption (m3)"
                },
                yaxis2: {
                    range: [0, 4.5],
                    type: "