dictData = {'2010': ['1', '2'], '2011': ['4', '3'], '2012': ['0', '45'],
    '2013': ['8', '7'], '2014': ['9', '0'], '2015': ['22', '1'], '2016': [
    '3', '4'], '2017': ['0', '5'], '2018': ['7', '8'], '2019': ['0', '9']}
print('sum of 1st items = %d' % sum([float(v[0]) for v in list(dictData.values())]))
print('sum of 2nd items = %d' % sum([float(v[1]) for v in list(dictData.values())]))
print('count of zeros   = %d' % sum([(float(v[0]) == 0) for v in list(dictData.
    values())]))
Summing values in a Dictionary of Lists