[[1545717600, 1]
,[1545724800, 1]
,[1545728400, 1]
,[1545732000, 2]
,[1545735600, 3]
,[1545739200, 4]
,[1545746400, 3]
,[1545750000, 2]
,[1545764400, 3]
,[1545768000, 1]