10 instances from 4 years

Jan
Feb
Mar
Apr
5
May
Jun
Jul
Aug
Sep
Oct
13
Nov
Dec

Jan
Feb
Mar
Apr
6
May
Jun
Jul
Aug
24
Sep
Oct
Nov
Dec
24

Jan
Feb
Mar
20
Apr
14
May
Jun
Jul
Aug
4
Sep
Oct
Nov
Dec
12

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2