If you want to get list out user data in liferay web content template, use just below velocity template code in web content template and get work out :
## Don't forget to set journal.template.velocity.restricted.variables=
## in portal-ext.properties; in other words, set it to nothing to unset the restriction.
##
#set ($userLocalService= $serviceLocator.findService("com.liferay.portal.service.UserLocalService"))
#set ($userId = $getterUtil.getLong($request.remote-user))
#set($user = $userLocalService.getUserById($userId))
#set ($userFirstName=$user.getFirstName())
## to get expando values from gradYear,UndergradSchool
#set ($class_year = $user.getExpandoBridge().getAttribute("gradYear").get(0))
#set ($ugrad = $user.getExpandoBridge().getAttribute("UndergradSchool"))
#set ($userCount=$userLocalService.getUsersCount())
<p>Year: $class_year</p>
<p>School: $ugrad</p>
<p>First Name: $userFirstName</p>
<p>User count: $userCount </p>
## Don't forget to set journal.template.velocity.restricted.variables=
## in portal-ext.properties; in other words, set it to nothing to unset the restriction.
##
#set ($userLocalService= $serviceLocator.findService("com.liferay.portal.service.UserLocalService"))
#set ($userId = $getterUtil.getLong($request.remote-user))
#set($user = $userLocalService.getUserById($userId))
#set ($userFirstName=$user.getFirstName())
## to get expando values from gradYear,UndergradSchool
#set ($class_year = $user.getExpandoBridge().getAttribute("gradYear").get(0))
#set ($ugrad = $user.getExpandoBridge().getAttribute("UndergradSchool"))
#set ($userCount=$userLocalService.getUsersCount())
<p>Year: $class_year</p>
<p>School: $ugrad</p>
<p>First Name: $userFirstName</p>
<p>User count: $userCount </p>