# CODE TABLE 4.4, Indicator of unit of time range
0 m  Minute
1 h  Hour
2 D  Day
3 M  Month
4 Y  Year
5 10Y  Decade (10 years)
6 30Y  Normal (30 years)
7 C  Century (100 years)
10 3h  3 hours
11 6h  6 hours
12 12h  12 hours
13 s  Second
# 14-191 Reserved
#192-254  Reserved for local use
255 255  Missing
