how to generate automatic Rows : I have Below Sample Table 
 
month   year    budget_Amt   Actual_Amt
 
feb          2017          25        30

mar     2016      10       5 

apr     2016      50           15

i'am executing following query

select month,year,budget_amt,Actual_Amt from Table where month in('Feb','Mar','apr')

i need following output

month   year    budget_Amt   Actual_Amt
 
feb          2017          25        30

mar     2016      10       5 

apr     2016      50           15

QuarterYTD   2016 85 50

4th record will generate automatically when i execute query

please help

Thank u