42 instances from 4 years

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Jan
Feb
12
13
19
Mar
12
13
Apr
May
Jun
Jul
Aug
Sep
1
Oct
1
Nov
Dec
16

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
3
4

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec