The Inbound Marketing Funnel

The questions refer to the data in the following table, which shows the number of visits, Leads, MQLs and SQLs and evangelists from September 2014 to August 2015.

1. WHAT EXPLANATION CAN YOU GIVE FOR THE DROP-IN VISITS THAT EXISTS BETWEEN THE MONTHS OF SEP14 AND OCT14? AND HOW CAN IT BE THAT THE SAME NUMBER OF LEADS IS MAINTAINED? CLARIFICATION: KEEP IN MIND THAT THE NUMBER OF LEADS OBTAINED IN THE TWO MONTHS IS SIMILAR. (THIS IS NOT A SEASONAL ITEM)

*2. WHAT EXPLANATION CAN YOU GIVE FOR THE DROP IN THE CONVERSION RATE -BY APPROXIMATELY 5 POINTS- FROM LEADS TO MQLS BETWEEN THE MONTHS OF NOV14 AND DEC14? CLARIFICATION: KEEP IN MIND THAT THE MONTHS BEFORE NOVEMBER HAD A SIMILAR CONVERSION RATE (BETWEEN 19% AND 25%) AND THE MONTHS AFTER DECEMBER HAD A SIMILAR CONVERSION RATE (12% AND 15%). IGNORE MAY 15.

*3. WHAT EXPLANATION CAN YOU GIVE FOR THE VARIABILITY OF MQL TO SQL CONVERSION RATES THROUGHOUT THE CHART PERIOD?