Table 2.

Distribution of cohort members across birth year quarters (forcing variable)

Forcing variable	Frequency	Percentage (n = 260 493)
–8	16 309	6.26
–7	17 415	6.69
–6	17 126	6.57
–5	15 803	6.07
–4	15 766	6.05
–3	17 035	6.54
–2	16 697	6.41
–1	15 630	6.00
0	15 741	6.04
1	16 860	6.47
2	16 695	6.41
3	15 522	5.96
4	15 419	5.92
5	16 743	6.43
6	16 561	6.36
7	15 171	5.82