1. How many days has your trust been on Opel 4 (formerly Black Alert) in the last 12 months (September 2017 – September 2018)? Can you please state the dates you were on Opel 4?
2. What was the longest period your trust was on Opel 4 in the last five years (up to September 2018)? Can you please state the start and finish dates?
