Social class	Time elapsed	Total
Total	Total	100.00
Total	In the last 2 years	77.05
Total	More than 2 years but less than 3 years ago	9.48
Total	More than 3 years ago	5.89
Total	Never	7.59
I	Total	100.00
I	In the last 2 years	85.06
I	More than 2 years but less than 3 years ago	6.61
I	More than 3 years ago	4.43
I	Never	3.91
II	Total	100.00
II	In the last 2 years	77.28
II	More than 2 years but less than 3 years ago	8.60
II	More than 3 years ago	5.33
II	Never	8.79
III	Total	100.00
III	In the last 2 years	77.08
III	More than 2 years but less than 3 years ago	10.71
III	More than 3 years ago	5.31
III	Never	6.90
IV	Total	100.00
IV	In the last 2 years	80.12
IV	More than 2 years but less than 3 years ago	10.38
IV	More than 3 years ago	4.52
IV	Never	4.98
V	Total	100.00
V	In the last 2 years	77.14
V	More than 2 years but less than 3 years ago	9.14
V	More than 3 years ago	5.68
V	Never	8.05
VI	Total	100.00
VI	In the last 2 years	68.92
VI	More than 2 years but less than 3 years ago	9.22
VI	More than 3 years ago	9.71
VI	Never	12.14
No data recorded	Total	100.00
No data recorded	In the last 2 years	72.46
No data recorded	More than 2 years but less than 3 years ago	12.98
No data recorded	More than 3 years ago	6.55
No data recorded	Never	8.00