Is this S.M.A.R.T. data normal for a 2013 Macbook Air SSD?
Fundamentally the SMART data of your 2013 Macbook Air SSD is normal comparing it with my Apple SSD SD0128F (inside a Fusion drive).

Probably some attribute names (namely Unexpected Power Loss Count and Program Fail Count Chip) provided by your SMART app are false:
Using two different SMART utilities here, the ID# 174 has the attribute name Host_Reads_MiB and the ID# 175 has the attribute name Host_Writes_MiB in both applications, which mean all read / written Mebibytes (~ 1.05 MB) in the life time of the SSD.

In your case that would translate to ~773 GB read and ~367 GB written.
Considering 3 power on hours (ID 9) of the SSD this results in 71.6 MB/s read and 33.9 MB/s written constantly - which seems a bit high.

The values here are 14,894,386 and 20,658,326 which equal 15.6 TB read and 21,7 TB written. With 698 power on hours this results in 6.2 MB/s read and 8.6 MB/s written constantly.



You may test this by making notes of the two values (ID174/175), executing a full restart and comparing the new values with the old values:

In my case (Mavericks 10.9.5) on the SSD the ∆ host_reads_MiB is 1820 MB and the ∆ host_writes_MiB 291 MB. On the HDD the ∆ Total_LBA_READ is 475 MB and the ∆ Total_LBA_Written 22 MB. Taken together ~2.3 GB are read and 313 MB are written while restarting a Mac - which seem legit values.