Table:
average annual volunteer hours

2013
2010
2007
2004

hours

total
154
156
166
168

men
164
153
168
168

women
145
158
164
168

age

15 to 19
110
115
116
127

20 to 24
147
159
182
161

25 to 34
126
109
133
137

35 to 44
122
136
158
152

45 to 54
150
168
169
176

55 to 64
203
201
206
202

65 to 74
231
236
216
250

75 and over
196
198
222
234

Statement: volunteers aged 65 to 74 spent about 231 hours volunteering.
Question: how many hours did volunteers aged 65 to 74 spend on volunteering?
Answer: [231.0]