The Excel file Sales Volume contains the time series data for sales volume of a retail store. Apply a time series model and forecast the sales for May 2021.

New Car Retail Sales
Month	Units
Jan	39,810
Feb	40,081
Mar	47,440
Apr	47,297
May	49,211
Jun	51,479
Jul	46,466
Aug	45,208
Sep	44,800
Oct	46,989
Nov	42,161
Dec	44,186
Jan	42,227
Feb	45,422
Mar	54,075
Apr	50,926
May	53,572
Jun	54,920
Jul	54,449
Aug	56,079
Sep	52,177
Oct	50,087
Nov	48,513
Dec	49,278
Jan	48,134
Feb	54,887
Mar	61,064
Apr	53,350
May	59,467
Jun	59,370
Jul	55,088
Aug	59,349
Sep	54,472
Oct	53,164
Nov	48,793
Dec	46,956