| Rolling Average 1 (19Q1-19Q4) | Rolling Average 2 (19Q2-20Q1) | Rolling Average 3 (19Q3-20Q2) | Rolling Average 4 (19Q4-20Q3) | Rolling Average 5 (20Q1-20Q4) |
WSI Rolling Average | 2.10 | 2.10 | 2.20 | 2.30 | 2.40 |