[[1548979200, 2]
,[1549152000, 1]
,[1549238400, 5]
,[1549324800, 1]
,[1549497600, 4]
,[1549584000, 1]
,[1549756800, 2]
,[1550102400, 3]
,[1550275200, 1]
,[1550448000, 3]
,[1550534400, 2]
,[1550620800, 2]
,[1550793600, 3]
,[1550880000, 7]