60 instances from 4 years

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

Jan
Feb
Mar
27
Apr
3
9
17
18
24
May
1
9
16
22
30
Jun
6
14
20
27
Jul
4
11
17
18
Aug
Sep
Oct
Nov
Dec

Jan
Feb
Mar
Apr
May
3
Jun
Jul
3
Aug
1
3
Sep
Oct
Nov
Dec

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