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Table 3 Descriptive statistics of the four subgroups. Here, \(|U|\) is the number of users, \(|A|\) is the number of artists, \(|T|\) is the number of tracks, \(|\mathit{LE}|\) is the number of listening events, \(|G|\) is the number of genres, \(\overline{|\mathit{LE}_{u}|}\) is the average number of listening events per user, \(\overline{|T_{u}|}\) is the average number of tracks per user and Age̅ is the average age (along with the standard deviation) of users in the group

From: Support the underground: characteristics of beyond-mainstream music listeners

Subgroup |U| |A| |T| |LE| |G| \(\overline{|\mathit{LE}_{u}|}\) \(\overline{|T_{u}|}\) Age̅ (std.)
\(U_{\mathrm{folk}}\) 369 9559 72,663 702,635 811 1904.160 549.650 27.599 (± 10.369)
\(U_{\mathrm{hard}}\) 919 11,966 107,952 2,150,246 1274 2339.767 557.470 23.867 (± 8.912)
\(U_{\mathrm{ambi}}\) 143 6869 39,649 224,327 918 1568.720 473.308 29.571 (± 14.138)
\(U_{\mathrm{elec}}\) 642 11,814 105,907 1,416,354 1005 2206.159 670.402 24.639 (± 7.886)