output = pd.DataFrame({'date' : [],'Forecast':[],'Cases': [],'Fitting':[],'Increase':[]})

output['date']=dateObsForecast
output['Forecast']=y1*last
output['Cases'].iloc[:dataLen]=data.values*last
output['Fitting'].iloc[:dataLen]=final.values*last
output['Increase'].iloc[1:]=(y1[1:]-y1[:-1])*last
output=output.set_index('date')