{ (json object)"time": xxx, (numeric) The timestamp for the final block in the window, expressed in UNIX epoch time"txcount": n, (numeric) The total number of transactions in the chain up to that point"window_final_block_hash":"hex", (string) The hash of the final block in the window"window_final_block_height": n, (numeric) The height of the final block in the window."window_block_count": n, (numeric) Size of the window in number of blocks"window_tx_count": n, (numeric) The number of transactions in the window. Only returned if "window_block_count" is > 0"window_interval": n, (numeric) The elapsed time in the window in seconds. Only returned if "window_block_count" is > 0"txrate": n (numeric) The average rate of transactions per second in the window. Only returned if "window_interval" is > 0}