_id	Year	Number of cars	Average cars per household	Number of households
1	1971	23,850 	1	24896
2	1981	33,900 	1.24	26674
3	1989	42,395 	1.37	30967
4	2001	52,557 	1.48	35562
5	2011	62,456 	1.5	41595
6	2021	68,219 	1.53	44583