Hi I have a table facility. Which holds a score for each day (Multiple scores can be reported each day and both would be valid)

I need to calculate the 90th percentile, SD, and Mean for score by month.

Facility:

```
Id   Month Date  score
1    Jan     1    5
1    Jan     1    5
1    Jan     2    3
1    Jan     3    4
1    Jan     4    4
1    Jan     5    4
1    Feb     1    5
1    Feb     1    5
1    Feb     2    3
1    Feb     3    4
1    Feb     4    4
1    Feb     5    4

```

Is there any way?

Thanks for your help.