I wanted to do something simple, so I used the ESTC to figure out about 
how many times works by Shakespeare were published in each decade from his 
birth in 1564 to the turn of the century in 1699. I hope that this 
fulfills the requirements for this assignment and that I did this correctly.
<pre>
:+? fin pn Shakespeare
FIN PN SHAKESPEARE - 1204 records
(The total #)

:+? and iyr 156#
Zero result, last result kept: 1204 records
(The total number from 1560-1569)

:MUL? and iyr 157#
Zero result, last result kept: 1204 records

:MUL? and iyr 158#
Zero result, last result kept: 1204 records

:? and iyr 159#
FIN PN SHAKESPEARE AND IYR 159# - 27 records

:MUL? and iyr 160#
FIN PN SHAKESPEARE AND IYR 160# - 47 records

:MUL? and iyr 161#
FIN PN SHAKESPEARE AND IYR 161# - 23 records

:MUL? and iyr 162#
FIN PN SHAKESPEARE AND IYR 162# - 13 records

:MUL? and iyr 163#
FIN PN SHAKESPEARE AND IYR 163# - 28 records

fin pn shakespeare and iyr 164#
FIN PN SHAKESPEARE AND IYR 164# - 2 records

:? FIN PN SHAKESPEARE AND IYR 165#
FIN PN SHAKESPEARE AND IYR 165# - 6 records

:? FIN PN SHAKESPEARE AND IYR 166#
FIN PN SHAKESPEARE AND IYR 166# - 5 records

:+? FIN PN SHAKESPEARE AND IYR 167#
FIN PN SHAKESPEARE AND IYR 167# - 17 records

:MUL? FIN PN SHAKESPEARE AND IYR 168#
FIN PN SHAKESPEARE AND IYR 168# - 24 records

:MUL? FIN PN SHAKESPEARE AND IYR 169#
FIN PN SHAKESPEARE AND IYR 169# - 18 records
</pre>