space?

da52175@Surveillance0128:~$ df -h
Filesystem              Size  Used Avail Use% Mounted on
/dev/sda1                73G  5.1G   64G   8% /
udev                    485M  4.0K  485M   1% /dev
tmpfs                   100M  824K   99M   1% /run
none                    5.0M     0  5.0M   0% /run/lock
none                    497M  408K  497M   1% /run/shm
/home/da52175/.Private   73G  5.1G   64G   8% /home/da52175