The short(er) story:

1. Share of farm family income from net farm income is declining
2. But when income received by families from the incorporated farm is taken into account
   1. The share of family income from farming activity and from nonfarming activity has not changed (much)
3. Increase in share of “wives” with a non-farm occupation
4. (Very) small increase in share of “husbands” with a non-farm occupation
5. In the longer-run, (very) little increase in share of operators with offfarm work
6. And there has been a decline in non-farm activities on the farm
7. Thus, pluriactivité of operators appears the same now as in the 1920s