มีหมายเลขแค็ตตาล็อก 80429 / bta80429 กี่ปี?
How many years have a Catalog Number of 80429 / bta80429?
df = pd.DataFrame(columns=['year', 'catalog_number'])
years_count = df.loc[df['catalog_number'] == '80429 / bta80429', 'year'].count()