adding more tests for the average_stage_of_career
adding more tests for the average_stage_of_career

alecbibat/womenrising,kma3a/womenrising,alecbibat/womenrising,kma3a/womenrising,alecbibat/womenrising,kma3a/womenrising,womenrising/womenrising,womenrising/womenrising,womenrising/womenrising