I have an explore like the following - Timestamp Rate Count July 1 $2.00 15 July 2 $2.00 12 July 3 $3.00 20 July 4 $3.00 25 July 5 $2.00 10 I want to get the below results - Rate Number of days Count $2.00 3 37 $3.00 2 45 How can I calculate the Numb...