Admissions in service	Admissions by 12 months of the year												Annual Total
Admissions in service	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sept	Oct	Nov	Dec	Annual Total
In 2020 (n₀)	41	26	50	47	29	64	57	46	60	58	71	84	633
In 2016 (n₁)	41	37	70	57	66	48	59	80	52	63	61	51	685
∆ (n₀ − n₁)	0	−11	−20	−10	−37	+16	−2	−34	+8	−5	+10	+33	−52
In 2020 (n₀)	41	26	50	47	29	64	57	46	60	58	71	84	633
In 2017 (n₂)	43	49	82	54	58	42	65	61	60	71	66	43	694
∆ (n₀ − n₂)	−2	−23	−32	−7	−29	+22	−8	−15	0	−13	+5	+41	−61
In 2020 (n₀)	41	26	50	47	29	64	57	46	60	58	71	84	633
In 2018 (n₃)	70	70	73	54	47	46	57	44	30	68	51	37	647
∆ (n₀ − n₃)	−29	−44	−23	−7	−18	+18	0	+2	+30	−10	+20	+47	−14
In 2020 (n₀)	41	26	50	47	29	64	57	46	60	58	71	84	633
In 2019 (n₄)	55	42	56	58	58	47	55	37	38	41	37	37	561
∆ (n₀ − n₄)	−14	−16	−6	−11	−29	+17	+2	+9	+22	+17	+34	+47	+72