What the average number of hours per day convicted prisoners were engaged in purposeful activity (a) across the prison estate and (b) in ea…

I have asked Colin McConnell, Chief Executive of the Scottish Prison Service (SPS), to respond. His response is as follows:
SPS publishes the average number of Purposeful Activity (PA) Hours per week, per convicted prisoner, as part of our Key Performance Indicators as reported in our Annual Report and Accounts.
In 2018-19 the average number of PA hours undertaken per convicted person in our care, per week, was 20 hours.
SPS does not publish figures in relation to the number of PA hours undertaken on a daily basis. The number of PA hours available for delivery fluctuate over the course of a working week and generally reduces at weekends.
Average PA hours by prison, per week, per convicted person in SPS care for 2018-19 is detailed in table 1, below:

Purposeful Activity Hours per Prison 2018-19
Prison
April
May
June
July
August
September
October
Barlinnie
18
16
15
15
15
14
14
Cornton Vale
17
20
22
20
18
19
18
Dumfries
18
20
20
21
18
17
18
Edinburgh
10
13
11
12
13
10
12
Glenochil
19
18
17
17
17
16
18
Grampian
30
29
26
24
25
23
26
Greenock
22
24
22
21
21
21
20
Inverness
26
27
23
30
25
27
24
Low Moss
23
25
23
23
25
22
23
Open Estate
23
24
22
23
25
22
24
Perth
20
21
19
18
18
17
19
Polmont
21
23
22
22
23
20
22
Shotts
23
22
23
26
26
25
26
Average per month
21
22
20
21
21
19
21


Purposeful Activity Hours per Prison 2018-19
Establishment
November
December
January
February
March
Annual average PA hours
Barlinnie
14
12
12
13
12
14
Cornton Vale
19
17
19
23
19
19
Dumfries
16
14
16
19
15
18
Edinburgh
13
11
14
14
13
12
Glenochil
18
14
17
16
16
17
Grampian
25
22
24
26
23
25
Greenock
19
15
16
21
22
20
Inverness
24
22
25
25
22
25
Low Moss
23
19
21
22
21
23
Open Estate
22
13
20
22
22
22
Perth
18
16
15
16
16
18
Polmont
22
18
20
22
19
21
Shotts
27
24
25
27
25
25
Average per month
20
17
19
20
19
20
HMP Addiewell and HMP Kilmarnock have differing contractual requirements for delivery of PA hours, which are detailed within each contract, by the service provider.
HMP Addiewell is required to offer a minimum 6 hours a day on a Monday to Friday basis, with a minimum of 40 PA hours per week over a rolling 7 day period for all people in custody, including those who are untried and civil prisoners.
HMP Kilmarnock is required to ensure that all convicted people in their care achieve 35 hours a week PA, with a minimum of 7 hours a day for a 5 day working week.