Social class	Time elapsed	Total
Total	Total	5,301.4
Total	In the last 2 years	4,058.0
Total	More than 2 years but less than 3 years ago	499.0
Total	More than 3 years ago	310.0
Total	Never	399.6
Total	No data recorded	34.8
I	Total	546.9
I	In the last 2 years	462.2
I	More than 2 years but less than 3 years ago	35.9
I	More than 3 years ago	24.0
I	Never	21.3
I	No data recorded	3.4
II	Total	461.9
II	In the last 2 years	355.0
II	More than 2 years but less than 3 years ago	39.5
II	More than 3 years ago	24.5
II	Never	40.4
II	No data recorded	2.5
III	Total	1,013.0
III	In the last 2 years	774.2
III	More than 2 years but less than 3 years ago	107.5
III	More than 3 years ago	53.3
III	Never	69.3
III	No data recorded	8.6
IV	Total	807.0
IV	In the last 2 years	642.9
IV	More than 2 years but less than 3 years ago	83.3
IV	More than 3 years ago	36.3
IV	Never	40.0
IV	No data recorded	4.6
V	Total	1,509.1
V	In the last 2 years	1,156.4
V	More than 2 years but less than 3 years ago	137.0
V	More than 3 years ago	85.2
V	Never	120.6
V	No data recorded	9.9
VI	Total	762.7
VI	In the last 2 years	522.2
VI	More than 2 years but less than 3 years ago	69.8
VI	More than 3 years ago	73.6
VI	Never	92.0
VI	No data recorded	5.1
No data recorded	Total	200.9
No data recorded	In the last 2 years	145.0
No data recorded	More than 2 years but less than 3 years ago	26.0
No data recorded	More than 3 years ago	13.1
No data recorded	Never	16.0
No data recorded	No data recorded	0.7