>>> import pandas as pd
>>> df = pd.read_csv('samarretes.csv', parse_dates=['Data'])

--ini-enunciat

>>> from anual import vendes_anuals
>>> nv, imp = vendes_anuals(df, 2000)
>>> f"Samarretes venudes:{nv}. Import vendes:{imp:.2f}"
'Samarretes venudes:90. Import vendes:2051.80'
>>> nv, imp = vendes_anuals(df, 2007)
>>> f"Samarretes venudes:{nv}. Import vendes:{imp:.2f}"
'Samarretes venudes:139. Import vendes:2783.60'

--fi-enunciat

>>> nv, imp = vendes_anuals(df, 2001)
>>> f"Samarretes venudes:{nv}. Import vendes:{imp:.2f}"
'Samarretes venudes:618. Import vendes:12735.90'
>>> nv, imp = vendes_anuals(df, 2002)
>>> f"Samarretes venudes:{nv}. Import vendes:{imp:.2f}"
'Samarretes venudes:533. Import vendes:10873.30'
>>> nv, imp = vendes_anuals(df.iloc[:100], 2004)
>>> f"Samarretes venudes:{nv}. Import vendes:{imp:.2f}"
'Samarretes venudes:0. Import vendes:0.00'