[[1551398400, 1]
,[1551484800, 4]
,[1551830400, 1]
,[1552003200, 1]
,[1552176000, 1]
,[1552435200, 4]
,[1552521600, 4]
,[1552608000, 6]
,[1552694400, 2]
,[1552780800, 8]
,[1552867200, 4]
,[1552953600, 1]
,[1553040000, 6]
,[1553126400, 4]
,[1553212800, 5]
,[1553299200, 1]
,[1553385600, 2]
,[1553644800, 3]
,[1553731200, 4]
,[1553904000, 1]
,[1553990400, 2]