anychart.onDocumentReady(function () {
var chart = anychart.cartesian();
chart.interactivity().hoverMode("by-x");
var series = chart.marker(data);
series.normal().size(10);
series.hovered().size(15);
series.selected().size(15);
chart.title("Marker Chart: Size");
chart.xAxis().title("Year");
chart.yAxis().title("Sales, $");
chart.container("container");