The index of national activity in the United States overcame the bar recession

According to the report of the Federal Reserve Bank of Chicago, the indicator of economic activity in the U.S. rose in September and overcame a critical point, which indicates a recession.
Note that the index of national activity is calculated on the basis of 85 different economic indicators.
The average value of the index of activity for the three-month period from July to September rose to a negative value of -0.63 compared with -0.96 in the previous period, from June to August. For the first time since January 2008, the average value of the index broke the level of -0.70, indicating a recession in the economy.
As noted by the FBI in Chicago, for the last four recessions in the U.S. recession ended around the same time, when the index of national activity exceeded the negative value of -0.70.