Mean number of requests for an ACTIVE archive
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800 
_
600 
_
400 
_
200 
_
0 
_
54
100
129
148
114
106
109
129
145
131
150
107
100
136
121
115
110
137
145
108
120
127
115
187
92
113
113
119
179
141
170
131
150
500
131
120
99
129
144
248
161
539
137
116
137
141
113
134
98
114
125
150
114
148
106
109
347
140
124
142
162
146
134
147
231
109
107
117
129
133
121
195
82
92
106
106
149
210
206
228
105
110
303
109
175
284
286
226
392
536
332
182
366
301
151
157
162
136
130
62
69
86
302
125
440
272
147
111
195
169
99
89
95
67
65
53
48
63
159
62
61
64
74
63
276
602
160
162
119
207
290
695
724
712
359
554
444
391
 

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